The facts pertinent to this original mandamus proceeding are not in dispute.
Relator is the District Attorney for Jackson County. Defendant is a judge of the Circuit Court for Jackson County.
Relator represents the State of Oregon in State v. Bobby Ron Vanzant, Jackson County Circuit Court Case No. 952538CC2. In that case, Vanzant was charged by indictment with first-degree manslaughter, based on an act that he had committed on June 18, 1995. On October 9, 1995, a jury convicted Vanzant of the lesser-included offense of second-degree manslaughter, in violation of ORS 163.125(l)(a).1 Defendant was the trial judge and sentencing judge.
ORS 137.700(2)(e) provides that a judge imposing sentence on a person convicted of second-degree manslaughter must order the person to serve at least 75 months in prison.2 ORS 137.700 is the codification of Measure 11, which was adopted by the people in 1994.3 Before being sentenced, Vanzant filed a memorandum in which he argued that ORS *602137.700 is facially unconstitutional for several reasons. Relator filed a response, contending that ORS 137.700 is valid. After a hearing, defendant rejected Vanzant’s various challenges to ORS 137.700, but he went on to rule sua sponte that the statute is facially unconstitutional under the Equal Protection Clause of the United States Constitution and that the statute is, therefore, unenforceable.
Thereafter, at sentencing, defendant placed Van-zant’s conviction into grid block 8-H and imposed a 20-month presumptive sentence under the sentencing guidelines. Over relator’s objection, defendant refused to impose the 75-month minimum sentence prescribed by ORS 137.700(2)(e). On December 22, 1995, judgment was entered on the conviction and sentence.
On January 12, 1996, relator filed a petition for an alternative writ of mandamus. This court issued an alternative writ, and the present proceeding ensued.4 For the reasons that follow, we now direct the issuance of a peremptory writ of mandamus, requiring defendant to enter a corrected judgment in State v. Bobby Ron Vanzant, Jackson County Case No. 952538CC2, that imposes sentence for the crime of second-degree manslaughter in accordance with ORS 137.700(2)(e).
I. APPROPRIATENESS OF MANDAMUS AS A REMEDY
Defendant asserts that mandamus is not an appropriate remedy, because the state can appeal from the judgment in the underlying case and thereby has a plain, speedy, and adequate remedy in the ordinary course of the law. See State ex rel LeVasseur v. Merten, 297 Or 577, 579-80, 686 P2d 366 (1984) (ordinarily mandamus will not lie if there is a plain, speedy, and adequate remedy in the course of the law).5
*603Appellate review is governed by statute. Henry and Henry, 301 Or 185, 188, 721 P2d 430 (1986). Under ORS 138.060(5), the state has a right to appeal a sentence “as provided in ORS 138.222.”
ORS 138.222 provides that appellate courts may not review certain sentences. ORS 138.222(2) provides in part:
“On appeal from a judgment of conviction entered for a felony committed on or after November 1, 1989, the appellate court shall not review:
“(a) Any sentence that is within the presumptive sentence prescribed by the rules of the Oregon Criminal Justice Commission.”
Relator argues that ORS 138.222(2)(a) applies and that it precludes appellate review of the issues presented.
ORS 138.222(2) further provides that “the appellate court shall not review:”
“(e) Except as authorized in subsections (3) and (4) of this section, any other issue related to sentencing.”
Subsection (3) relates to departure sentences, which are not involved here. Subsection (4)(a) states that “the appellate court may review a claim that * * * [t]he sentencing court failed to comply with requirements of law in imposing or failing to impose a sentence.” Defendant argues that ORS 138.222(4)(a) authorizes review of the state’s claims on appeal in State v. Vanzant.
The parties’ arguments require us to engage in a two-step inquiry. The first step is to determine whether the court is being asked to “review” “[a]ny sentence that is within the presumptive sentence prescribed by the rules of the Oregon Criminal Justice Commission” — that is, whether ORS 138.222(2)(a) applies. If the answer is “yes,” the second step is to determine whether review under ORS 138.222(4)(a) is available nonetheless.
*604We turn first to the meaning of ORS 138.222(2)(a). ORS 137.651 to 137.671 provide for the establishment and functioning of the Oregon Criminal Justice Commission (Commission), which is referred to in the statute that we are interpreting. The Commission’s authority includes rule-making. ORS 137.673. ORS 137.669 provides that the felony sentencing guidelines adopted by the Commission and approved by the legislature
“shall control the sentences for all crimes committed after the effective date of such guidelines. Except as provided in ORS 137.671, the incarcerative guidelines and any other guidelines so designated by the commission shall be mandatory and constitute presumptive sentences.” (Emphasis added.)
ORS 137.671 provides:
“(1) The court may impose a sentence outside the presumptive sentence or sentence range made presumptive under ORS 137.669 for a specific offense if it finds there are substantial and compelling reasons justifying a deviation from the presumptive sentence.
“(2) Whenever the court imposes a sentence outside the presumptive sentence it shall set forth the reasons for its decision in the manner required by rules of the Oregon Criminal Justice Commission.” (Emphasis added.)
The statutes do not define the term “presumptive sentence.” The Commission has, however, defined that term by rule:
“ ‘Presumptive Sentence’ means the sentence provided in a grid block for an offender classified in that grid block by the combined effect of the crime seriousness ranking of the current crime of conviction and the offender’s criminal history.” OAR 253-03-001(16).
“ ‘Grid Block’ means a box on the grid formed by the intersection of the crime seriousness ranking of a current crime of conviction and an offender’s criminal history classification.” OAR 253-03-001(10).
“ ‘Grid’ means the Sentencing Guidelines Grid set forth [as an appendix to the Commission’s rules.]” OAR 253-03-001(9).
*605From the relevant statutes and from the Commission’s rules, it is clear that a “presumptive sentence” does not mean a statutorily mandated term of imprisonment that does or may apply to a particular conviction. ORS 137.637 provides:
“When a determinate sentence of imprisonment is required or authorized by statute, the sentence imposed shall be the determinate sentence or the sentence as provided by the rules of the Oregon Criminal Justice Commission, whichever is longer.” (Emphasis added.)
As explained above, it is only the latter type of sentence, not the former, that can be “the presumptive sentence” as that term is used in the statute. ORS 137.669, ORS 137.671. Echoing the provisions of ORS 137.637, OAR 253-09-001 provides in part:
“(1) If a mandatory prison sentence is required or authorized by statute, the sentence imposed shall be that determinate sentence or the sentence under these rules whichever is longer.
“(2) If the provisions of ORS 137.635 [providing mandatory determinate sentences for certain specified felony convictions], require the imprisonment of an offender for whom the grid provides presumptive probation, the offender shall be imprisoned for a duration determined as follows:
“[listing months of imprisonment for offenses classified in various grid blocks.]”
See also State v. Jones, 315 Or 225, 231, 844 P2d 188 (1992) (“a sentence is a ‘mandatory minimum sentence’ if it is statutorily required”).
The felony sentencing guidelines thus contain a means to harmonize potential conflicts between “the presumptive sentence” and a longer, statutorily mandated term of imprisonment. That being so, the enactment or operation of a statutorily mandated term of imprisonment does not erase the applicability of the felony sentencing guidelines as a whole and does not alter the meaning of the term “presumptive sentence,” which is expressly defined by rule.
*606Nothing in Measure 11 interferes with that reconciliation of “the presumptive sentence,” prescribed by the felony sentencing guidelines, with a statutorily mandated term of imprisonment. For example, ORS 137.700(1) provides that “[t]he court may impose a greater sentence [than the specified minimum] if otherwise permitted by law.” With respect to each offense listed in ORS 137.700(2), except murder, the minimum sentence prescribed by ORS 137.700 is significantly less than the maximum sentence already prescribed for that offense by ORS 161.605.6 Here, for example, the minimum prison sentence prescribed by ORS 137.700(2)(e) for Vanzant’s conviction is 75 months, while the maximum prison sentence allowed by law for that conviction is 10 years (120 months), ORS 161.605(2). Although the statutorily mandated term of imprisonment likely will exceed “the presumptive sentence” prescribed by the felony sentencing guidelines in most cases, (1) that will not necessarily be true in all cases and (2) the sentencing court may use the criteria for departure sentences in the guidelines to impose a sentence greater than the statutorily mandated minimum, even when the offense is listed in ORS 137.700(2).
Defendant’s argument may be read to suggest that Measure 11 impliedly repealed the sentencing guidelines for all covered crimes, so that it is a legal impossibility to impose a “presumptive sentence” with respect to a Measure 11 crime. We disagree.
“The doctrine of implied repeal of statutes is that when the legislature enacts a subsequent statute which is repugnant to or in conflict with a prior statute, but contains no language expressly repealing the prior statute, the prior statute is impliedly repealed.” State v. Shumway, 291 Or 153, 160, 630 P2d 796 (1981).
See also Anthony et al. v. Veatch et al., 189 Or 462, 481, 220 P2d 493, 221 P2d 575 (1950) (“If earlier and later statutes are in irreconcilable conflict, then the earlier must yield to the later by implied repeal.” (citations omitted)). Repeal by implication is “not favored.” State ex rel Med. Pear Co. v. Fowler, 207 Or 182, 195, 295 P2d 167 (1956). It must be established *607by “ ‘plain, unavoidable, and irreconcilable repugnancy.’ ” Shumway, 291 Or at 162 (quoting Messick v. Duby, 86 Or 366, 371, 168 P 628 (1917)).
We have explained above how the sentencing guidelines and Measure 11 can be harmonized to give effect to both. In that circumstance, no implied repeal has occurred.
From the text and context of ORS 138.222(2)(a), we conclude that the phrase “[a]ny sentence that is within the presumptive sentence prescribed by the rules of the Oregon Criminal Justice Commission,” found in that statute, refers only to “the sentence provided in a grid block for an offender classified in that grid block by the combined effect of the crime seriousness ranking of the current crime of conviction and the offender’s criminal history.” OAR 253-03-001(16). By definition, then, “[a]ny sentence that is within the presumptive sentence prescribed by the rules of the Oregon Criminal Justice Commission” refers to a specified number of months of incarceration for a conviction that has been placed in the proper grid block.
Defendant placed Vanzant’s conviction into grid block 8-H of the felony sentencing guidelines and imposed a 20-month sentence. It is undisputed that Vanzant’s conviction properly falls into grid block 8-H; that “the presumptive sentence” provided for a conviction in grid block 8-H is 19 to 20 months; that the 20-month sentence thereby is “within” that presumptive sentence; and that Vanzant’s conviction is subject to the felony sentencing guidelines as well as to ORS 137.700. That being so, Vanzant’s sentence of 20 months is a “sentence that is within the presumptive sentence prescribed by” the felony sentencing guidelines, within the meaning of ORS 138.222(2)(a).
The only remaining issue under ORS 138.222(2)(a) is whether relator is seeking appellate “review” of that sentence. What relator calls into question here is the number of months of incarceration to which Vanzant has been sentenced, even though his conviction has been placed in the proper grid block. What relator seeks is a different sentence that is not “within the presumptive sentence,” for a conviction that has been placed in the proper grid block. Thus, from the text of ORS 138.222(2)(a), relator is seeking “review” of a *608“sentence that is within the presumptive sentence prescribed by” the felony sentencing guidelines.
Context supports the foregoing reading. ORS 138.222(3) provides for the limited bases on which a challenge is available “[i]n any appeal from a judgment of conviction imposing a sentence that departs from the presumptive sentence.” That section reinforces the conclusion that no such bases are available in an appeal from a judgment of conviction imposing a presumptive sentence. ORS 138.222(4)(b) allows the appellate court to review a claim that “[t]he sentencing court erred in ranking the crime seriousness classification of the current crime or in determining the appropriate classification of a prior conviction or juvenile adjudication for criminal history purposes.” That section reinforces the conclusion that appellate review is not available to challenge a presumptive sentence when a conviction is placed in the proper grid block.
If text and context leave any doubt as to the intended scope of the limitation of “review” of a “sentence that is within the presumptive sentence prescribed by” the felony sentencing guidelines, legislative history quiets that doubt. In his statement on the Senate floor, which preceded the passage of the sentencing guidelines bill that included ORS 138.222, Senator Springer explained that the drafters “worked very closely to limit those circumstances in which an appeal may be taken.” Tape Recording, Senate Floor Debate, June 15, 1989, Tape 184, Side A. Senator Springer noted that 30 to 35 percent of the Court of Appeals’ substantial workload then involved sentencing-related criminal cases and that the drafters intended to be sensitive to that workload. Ibid. To that end, “we provide that the court will not review * * * if the sentence is within the presumptive sentence provided by the rules.” Ibid.
Senator Springer then discussed the other situations in which there would be no review, followed by a discussion of “those areas in which we would permit an appeal.” Ibid. As to those areas, “the Court of Appeals is going to be looking just at a few issues,” none of which included the kind of situation presented here. Ibid.
Specifically with regard to the state’s right to seek appellate review, Senator Springer said in part:
*609“And another important measure I want to point out, just in closing on this section, is you’ll find that, for the first time, the state is given the opportunity to appeal the sentence if they feel that the judge has made an error in finding, perhaps a mitigation or departure with which the state may disagree.”Ibid.
There is nothing in the legislative history to suggest that the state could appeal a presumptive sentence in any circumstance.
The purpose of ORS 138.222, as revealed in the legislative history, was to curtail appellate review and reduce the number of appeals. With respect to those cases in which the trial court imposed a presumptive sentence on a conviction that was placed in the proper grid block, the stated intention was that appellate review would not be available. There was no suggestion that the reason for imposing the presumptive sentence, or the reason for not imposing a different (higher or lower) sentence, would matter.
After examining text, context, and legislative history, we conclude that relator is seeking “review” of Van-zant’s sentence, which is a “sentence that is within the presumptive sentence prescribed by” the felony sentencing guidelines. Accordingly, the limitation on appellate review contained in ORS 138.222(2)(a) applies. We therefore turn to the second step of the inquiry: whether ORS 138.222(4)(a) nonetheless permits review of the issues presented.
In State v. Adams, 315 Or 359, 365-67, 847 P2d 397 (1993), this court held that “ORS 138.222(3) and (4) are exceptions only to ORS 138.222(2)(e)” but not to ORS 138.222(2)(a) to (d). (Emphasis added.) The court based that holding primarily on the wording, context, and structure of the statute. Ibid. As we have concluded, relator’s petition asks for review of the number of months of incarceration to which Vanzant has been sentenced under the presumptive-sentence portion of the felony sentencing guidelines, which is the precise subject covered by ORS 138.222(2)(a), not an “other” issue covered by ORS 138.222(2)(e). That being so, ORS 138.222(4)(a) is not available.
In response to that line of reasoning, defendant argues, first, that a criminal defendant could challenge on direct appeal a decision to impose a Measure 11 sentence as *610being unconstitutional. For example, had defendant imposed a 75-month sentence instead of a 20-month sentence, he asserts, Vanzant could have appealed and had his constitutional claims reviewed. That proposition is correct, because such a sentence is not a presumptive sentence as to which ORS 138.222(2)(a) precludes appellate review. However, that proposition does not demonstrate that appellate review is available when a court imposes a lesser, presumptive sentence. The fact that a statute may grant a comparative advantage to criminal defendants does not detract from the statute’s clear meaning.
Defendant next points out that the state filed a notice of appeal in State v. Vanzant. That is so, but a litigant’s prudence proves nothing about the meaning of the statutes governing appellate review.
Finally, defendant contends that Adams does not apply, because the criminal defendant in Adams had stipulated to a departure sentence, whereas “Vanzant stipulated to nothing.” (Boldface deleted.) Defendant misses the key point of Adams. It is true that Adams concerned unreviewa-bility under ORS 138.222(2)(d), governing stipulated sentences, while the present case concerns unreviewability under ORS 138.222(2)(a), governing presumptive sentences. Nonetheless, the central underpinning of this court’s holding in Adams was that the exceptions found in subsections (3) and (4) of ORS 138.122 “are exceptions only to ORS 138.222(2)(e)” but not to the enumerated situations found in ORS 138.222(2)(a) to (d). Adams, 315 Or at 365-67. When this court interprets a statute, that interpretation becomes a part of the statute as if written therein. State v. King, 316 Or 437, 445, 852 P2d 190 (1993).7 That principle applies even when the statute operates in a new factual setting.
In summary, relator has no plain, speedy, and adequate remedy in the ordinary course of the law. We exercise our discretion to proceed in mandamus.
*611II. STATE CONSTITUTIONAL CLAIMS
We first address state constitutional claims. See State v. Charboneau, 323 Or 38, 53, 913 P2d 308 (1996) (court addresses state constitutional claims before addressing federal constitutional claims). Vanzant asserts that Measure 11 violates the equal privileges and immunities clause of Article I, section 20, of the Oregon Constitution; the right of allocution under Article I, section 11; the reformation clause of Article I, section 15; and the separation-of-powers principles set forth in Article III, section 1, and Article VII (Amended), section 1.
A. Equal Privileges and Immunities
Article I, section 20, provides:
“No law shall be passed granting to any citizen or class of citizens privileges, or immunities, which, upon the same terms, shall not equally belong to all citizens.”
Vanzant argues:
“Measure 11 creates two subclasses: offenders whose Measure 11 minimums are greater than their presumptive maximum guidelines sentences, and offenders whose Measure 11 minimums are less than their presumptive máxi-mums. Trial courts cannot mitigate the sentences of members of the former subclass, but they can mitigate (at least to a degree) the sentences of members of the latter class. Measure 11 disfavors members of the former class, and there is nothing those members can do to gain entry into the favored class. The measure thereby violates the disfavored members’ rights of equal privileges and immunities.”
The groups to which Vanzant alludes do not comprise “class [es] of citizens” within the meaning of Article I, section 20. In State v. Clark, 291 Or 231, 630 P2d 810, cert den 454 US 1084 (1981), this court discussed the meaning of the constitutional phrase “class of citizens” in Article I, section 20:
“The terms ‘class’ and ‘classification’ are invoked sometimes to mean whatever distinction is created by the challenged law itself * * *. [E]very law itself can be said to ‘classify’ what it covers from what it excludes. For instance, the rule of this court that limits the time for filing a petition *612for review (Rule 10.05) ‘classifies’ persons by offering the ‘privilege’ of review to those who file within 30 days and denying it to those who file later. Similarly, a law that licenses opticians and optometrists to perform different functions does not grant or deny privileges to classes of persons whose characteristics are those of ‘opticians’ and ‘optometrists’; rather, the law creates these classes by the licensing scheme itself. Attacks on such laws as ‘class legislation’ therefore tend to be circular and * * * have generally been rejected whenever the law leaves it open to anyone to bring himself or herself within the favored class on equal terms.” 291 Or at 240-41 (citation omitted).
Laws involving classifications created by statute “are entitled to no special protection and, in fact, are not even considered to be classes for the purposes of Article I, section 20.” Sealey v. Hicks, 309 Or 387, 397, 788 P2d 435, cert den 498 US 819 (1990).
Measure 11 is a law that involves classifications created by statute. Indeed, Vanzant acknowledges that persons subject to sentencing under Measure 11 “are not members of a ‘true class,’ for Article I, section 20[,] purposes.”
Measure 11 mandates the same minimum sentence for everyone who commits a particular crime. The fact that some such persons have committed crimes in the past that place them in a position under the felony sentencing guidelines that is less favorable than the position that they occupy under Measure 11 does not create “classes” for Article I, section 20, purposes.8 A criminal defendant is responsible not only for having committed the crime that calls Measure 11 into play, but also for having accumulated a prior criminal history. In other words, every person had the opportunity to remain in the allegedly favored class by obeying the law. Thus, the classification on which Vanzant relies is not based on factors beyond the criminal defendant’s control. Neither is *613that classification based on an immutable characteristic, such as race.
We conclude that the challenge under Article I, section 20, is not well taken.
B. Allocution
Article I, section 11, of the Oregon Constitution, states in part that, “[i]n all criminal prosecutions, the accused shall have the right * * * to be heard by himself and counsel.” That right includes the right to speak at sentencing, that is, the right of allocution. DeAngelo v. Schiedler, 306 Or 91, 94-96, 757 P2d 1355 (1988). Vanzant argues:
“[The right of allocution] requires that at sentencing, defendants be given a meaningful way to seek mitigation of their sentences. However, a defendant such as Vanzant, whose Measure 11 minimum is greater than his presumptive maximum guidelines sentence, has no meaningful way to seek mitigation. The measure violates his right of allocution.”
Vanzant misunderstands the nature and extent of the right of allocution. That right does not carry with it a right to have the sentencing court necessarily be able to reduce a sentence that otherwise applies. Rather, in DeAngelo, this court noted that the right “should logically include the right to make any statements relevant to existing sentencing and parole practices.” 306 Or at 95 (emphasis added). That is not the same as a right to alter or to abate existing sentencing practices.9
Vanzant also is wrong to suggest that the right of allocution is meaningless for a person being sentenced under ORS 137.700. First, that statute prescribes imposition of a minimum sentence for certain felonies. Thus, a trial court could impose an even longer sentence than the minimum.10 *614The right of allocution gives a defendant an opportunity to attempt to convince the sentencing court to impose no more than the minimum, as well as to address other sentencing matters that may be involved, such as the imposition of a fine.
Second, the present case involves only a facial challenge to ORS 137.700. During allocution a defendant may argue that the mandatory minimum, as applied to the particular crime, would be unconstitutionally cruel and unusual or disproportionate.11 That, too, is a meaningful use of allocution that remains available under ORS 137.700.
In summary, the challenge under Article I, section 11, is not well taken.
C. Reformation
At the time of the underlying crime, Article I, section 15, of the Oregon Constitution, provided:
“Laws for the punishment of crime shall be founded on the principles of reformation, and not of vindictive justice.”12
Vanzant argues that the foregoing provision
“requires that either the judiciary or the executive have the authority to structure sentences in accordance with an offender’s reformation. Measure 11 — a statute — prohibits such structuring (indeed, it does not even allow the executive to give offenders time off for good behavior). Measure 11 thereby violates Article I, section 15.”
As noted above, ORS 137.700 establishes minimum terms of imprisonment for convictions of specific felonies. More than 30 years ago, this court rejected an Article I, section 15, challenge to a similar statute. In Tuel v. Gladden, 234 Or 1, 3, 379 P2d 553 (1963), the convicted person had been sentenced to life in prison, under a habitual-offender *615statute. This court held that the sentence mandated by that statute did not violate Article I, section 15, reasoning:
“The Oregon Constitution does not attempt to state all of the principles to be followed by the legislature in enacting sentencing laws. The constitution does contain sentencing restrictions in addition to the above quoted [reformation clause]. It requires that ‘all penalties shall be proportioned to the offenses’; excessive fines shall not be imposed; and cruel and unusual punishments shall not be inflicted. Art I, § 16. The drafters of the constitution, however, did not include the most important consideration of all, the protection and safety of the people of the state. Such a principle does not have to be expressed in the constitution as it is the reason for criminal law. All jurisdictions recognize its overriding importance.
“We interpret Art I, § 15, of the Oregon Bill of Rights to command and require that Oregon sentencing laws have as their object reformation and not retaliation, but they do not require that reformation be sought at substantial risk to the people of the state.” Id. at 5-6 (footnote omitted).
Vanzant asserts that Tuel is distinguishable, because it involved application of a habitual-offender statute, which by definition took account of a convicted person’s criminal history and, implicitly, resistance to reformation. But the rationale of Tuel, quoted above, is more general than Vanzant suggests. Under that rationale, the legislature is entitled to prescribe more serious penalties for crimes that present greater risks to the safety of the people of the state. Nothing in Tuel suggests that the choice of a sentence must differ from criminal to criminal because of Article I, section 15. To the contrary, its very holding supports the imposition of a lengthy mandatory sentence for all persons coming within the ambit of the sentencing statute.
Vanzant’s assertions that Article I, section 15, requires that all sentences be capable of individualized “structuring,” and that ORS 137.700 violates that provision by not providing it, are not well taken.
D. Separation of Powers
Article III, section 1, of the Oregon Constitution, provides:
*616“The powers of the Government shall be divided into three seperate (sic) departments, the Legislative, the Executive, including the administrative, and the Judicial; and no person charged with official duties under one of these departments, shall exercise any of the functions of another, except as in this Constitution expressly provided.”
Article VII (Amended), section 1, provides in part:
“The judicial power of the state shall be vested in one supreme court and in such other courts as may from time to time be created by law.”
Vanzant makes four separate points, which we will consider in turn.
First, he argues:
“a. To the extent Measure 11 minimums prohibit mitigation, it encroaches on the judicial function of preserving offenders’ constitutional rights against cruel and unusual punishments, and of allocution and reformation.”
We have discussed the issues of allocution and reformation earlier in this opinion. Additionally, ORS 137.700 does not encroach on the judicial ability to protect a convicted person’s constitutional right to be free from cruel and unusual punishment. As explained above, if a sentencing court rules that a statutorily prescribed sentence (under ORS 137.700 or any other statute) would be unconstitutionally cruel and unusual as applied in a given case, the court may refuse to impose the prescribed sentence. Nothing in ORS 137.700 interferes with the performance of that judicial function. Conversely, nothing in the statute requires another branch of government to perform any functions that it was not performing before the enactment of the statute.
Next, Vanzant argues:
“b. Historically, the power to ascertain appropriate sentences has been shared by the legislative, executive, and judicial branches; thus, the judiciary has an inherent sentencing power. To the extent Measure 11 prohibits mitigation, it reduces sentencing judges to mere scriveners — functionaries who merely pencil in legislatively predetermined sentences. Thus, the measure eviscerates the judiciary’s inherent (historically shared) sentencing powers.”
*617The inherent sentencing power of the courts, whatever its precise reach may be, does not go as far as that argument suggests. Determining the range of possible sentences for particular crimes historically has been a legislative, rather than a judicial, function. As this court said in State v. Smith, 128 Or 515, 524, 273 P 323 (1929), the “power to declare what punishment maybe assessed against those convicted of crime is not a judicial, but a legislative, power.”13
This court has held that courts have inherent power to structure sentences in certain respects. For example, in State v. Jones, 250 Or 59, 61, 440 P2d 371 (1968), this court held that the judiciary had inherent power to decide whether sentences should be served consecutively or concurrently. That proposition does not carry with it, however, a corollary inherent power to negate or disregard statutorily prescribed sentences. To the contrary, this court has held that courts need specific statutory authority to impose a sentence of imprisonment.14 In Howell v. State of Oregon, 1 Or 241, 245 (1859), this court held that, when a statute limited solitary confinement to a maximum of 20 days, the court had no power to sentence the defendant to a year of solitary confinement. More recently, in State v. Leathers, 271 Or 236, 240, 531 P2d 901 (1975), this court emphasized that,
“[w]hen a court acts beyond the bounds of its sentencing authority, it infringes upon the power of the legislature to determine the manner of punishment. A sentence must be in conformity with the governing statute; any non-conforming sentence is void for lack of authority and thus totally without legal effect.” (Citations omitted.)
Vanzant’s third contention is the following:
“c. The charge which the district attorney (DA) selects sets the sentence for a Measure 11 offender. Neither the judiciary nor the executive has the authority to review that sentencing selection. Thus, Measure 11 impermissibly delegates plenary sentencing authority to the DA.”
*618ORS 137.700 establishes minimum prison sentences for 18 felonies. Although the statute does decrease the amount of discretion that a judge may exercise in sentencing a person convicted of a covered crime,15 it does not transfer any of the former discretion to prosecutors. When making a charging decision, a prosecutor always has known what the legislative range of sentencing is and what statutory minimum sentence (if any) applies. ORS 137.700 has done nothing to change that fact, other than to establish some additional statutory minimum sentences for particular crimes. In other words, the prosecutor’s charge always has “set” the sentence in the sense that the charge carries with it a specified, legislatively determined punishment. (Indeed, were it otherwise, serious constitutional questions would arise because, unless the prosecutor can know what potential punishment a given charge carries, the accused person would not be able to determine it, either.)
Moreover, it is the conviction of a crime — a judicial event — and not the mere charge, that requires imposition of a Measure 11 sentence. It is a judge, not a prosecutor, who imposes it.
Vanzant’s fourth and last separation-of-powers argument is this:
“d. Measure 11 orders the executive not to reduce sentences in any way. However, Article I, section 15 requires the executive to shorten sentences in response [to] offenders’ reformation. Thus, the measure impermissibly prescribes duties which conflict with the executive’s constitutional powers.”
Vanzant appears to be arguing either that Measure 11 is the legislative performance of an executive function or that Measure 11 unduly burdens the exercise of an executive function. Neither variant of the argument is persuasive.
In State ex rel Frohnmayer v. Oregon State Bar, 307 Or 304, 310, 767 P2d 893 (1989), this court held that a violation of Article III, section 1, occurs when “the powers or functions of one governmental branch are performed by a person *619performing the duties of a different branch.” In that case, the court held that application of the public records law to the disciplinary files of the Oregon State Bar did not violate the state constitutional doctrine of separation of powers. The court noted that “the exercise of power constitutionally assigned to one branch will often have a direct impact on another branch of government” and that such an impact does not, itself, violate the constitution. Ibid.
As discussed above, the selection of a range of sentences for the crimes specified in ORS 137.700 is a power constitutionally assigned to the legislative branch. It is not an executive function.
Instead, the function of the executive is to “take care that the Laws be faithfully executed.” Or Const, Art V, § 10. Further, as discussed above, Article I, section 15, does not confer on the executive branch the discretion to reduce the length of criminal sentences.
We turn now to the second variant of Vanzant’s separation-of-powers argument and consider whether one branch of government has unduly burdened the actions of another. See Rooney v. Kulongoski (Elections Division #13), 322 Or 15, 28, 902 P2d 1143 (1995) (stating issue). The underlying problem that the “undue burden” cases address is “avoid [ing] the potential for coercive influence between governmental departments.” Ibid. Measure 11 does not coerce the exercise of executive-branch functions. As previously discussed, Article I, section 15, does not confer on the executive the power to reduce the length of criminal sentences.
In conclusion, none of Vanzant’s arguments concerning separation of powers persuades us of an infirmity in ORS 137.700.
III. FEDERAL CONSTITUTIONAL CLAIMS
Because none of the state constitutional challenges succeeds, we turn to the federal constitutional challenges.
A. Guarantee Clause
The first of the federal constitutional claims is that the initiative process by which the voters adopted Measure 11, and the content of a companion measure, violate the *620Guarantee Clause of Article IV, section 4, of the United States Constitution.16 Because we conclude that Vanzant’s Guarantee Clause claim is not justiciable, we do not reach the merits of that claim.17
Both the United States Supreme Court and this court have held that claims arising under the Guarantee Clause do not present justiciable controversies. See Pacific Telephone Co. v. Oregon, 223 US 118, 149-51, 32 S Ct 224, 56 L Ed 377 (1912) (so holding); Baum v. Newbry et al., 200 Or 576, 583-85, 267 P2d 220 (1954) (applying Pacific Telephone and so holding). In Pacific Telephone, an Oregon taxpayer challenged an Oregon state tax levied against it, on the theory that that tax, which had been enacted through an initiative petition pursuant to Article IV, section 1 (1902), of the Oregon Constitution, was unconstitutional. The United States Supreme Court described the taxpayer’s argument, and the issues before it in that case, this way:
“[The taxpayer’s arguments] are all based upon the single contention that the creation by a State of the power to legislate by the initiative and referendum causes the prior lawful state government to be bereft of its lawful character as the result of the provisions of [the Guarantee Clause]. This being the basis of all the contentions, the case comes to the single issue whether the enforcement of that provision, *621because of its political character, is exclusively committed to Congress or is judicial in its character.” Pacific Telephone, 223 US at 137.
The Court held that Guarantee Clause challenges were not justiciable. It stated:
“As the issues presented, in their very essence, are, and have long since by this court been, definitely determined to be political and governmental, and embraced within the scope of the powers conferred upon Congress, and not therefore within the reach of judicial power, it follows that the case presented is not within our jurisdiction, and the writ of error must therefore be, and it is, dismissed for want of jurisdiction.” Id. at 151.18
Since its decision in Pacific Telephone, the Supreme Court has not swayed from that holding and has, in fact, repeatedly reiterated it. See, e.g., Kiernan v. Portland, Ore., 223 US 151, 163-64, 32 S Ct 231, 56 L Ed 386 (1912) (applying Pacific Telephone and holding that a Guarantee Clause claim presents a nonjusticiable controversy); Marshall v. Dye, 231 US 250, 256-57, 34 S Ct 92, 58 L Ed 206 (1913) (the plaintiffs’ Guarantee Clause claim “presents no justiciable controversy concerning which the decision is reviewable in this court upon writ of error to the state court”); Davis v. Ohio, 241 US 565, 569, 36 S Ct 708, 60 L Ed 1172 (1916) (“the proposition and the argument [that including the referendum within the state legislative power violates the Guarantee Clause] disregard the settled rule that the question of whether that guarantee of the Constitution has been disregarded presents no justiciable controversy”); Ohio v. Akron Park District, 281 US 74, 79-80, 50 S Ct 228, 74 L Ed 710 (1930) (“it is well settled that the questions arising under [the Guarantee Clause] are political, not judicial, in character and thus are for the consideration of the Congress and not the courts”); Highland Farms Dairy v. Agnew, 300 US 608, 612, *62257 S Ct 549, 81 L Ed 835 (1937) (“the enforcement of [the Guarantee Clause], according to the settled doctrine, is for Congress, not the courts”); Baker v. Carr, 369 US 186, 224, 82 S Ct 691, 7 L Ed 2d 663 (1962) (“the Court has consistently held that a challenge to state action based on the [Guarantee] Clause presents no justiciable question”); City of Rome v. United States, 446 US 156, 182 n 17, 100 S Ct 1548, 64 L Ed 2d 119 (1980) (“[w]e do not reach the merits of the appellants’ argument that the Act violates the Guarantee Clause * * * since that issue is not justiciable”).
Because this is a question of federal law, we are bound by the pertinent decisions of the United States Supreme Court. See Barcik v. Kubiaczyk, 321 Or 174, 183-86, 895 P2d 765 (1995) (federal standards of justiciability apply to a federal claim under 42 USC § 1983, even when the claim is brought in state court). In Baum, this court applied Pacific Telephone and its progeny and refused to reach the merits of the plaintiffs argument that an amendment to the state constitution violated the Guarantee Clause by improperly delegating legislative powers to the courts and the executive. This court stated:
“As to the alleged delegation of legislative authority to the secretary of state, it is well settled that it is not within the judicial power to determine whether the republican form of government as guaranteed by the federal constitution is violated because that question is peculiarly a political matter and not one of judicial cognizance.
«‡ * * * *
“We are bound by the interpretation placed on the Federal Constitution by the Supreme Court of the United States. This, therefore, being a political matter and not one for judicial inquiry, we are powerless to determine whether or not the constitutional amendment before us violates article IV, § 4, of the Federal Constitution.” Baum, 200 Or at 584-85.
Vanzant argues that the Supreme Court’s cases hold only that Guarantee Clause claims are not justiciable in federal courts. He contends that nothing contained in Pacific Telephone or its progeny precludes state courts from considering claims brought under the Guarantee Clause. Thus, *623Vanzant asserts that Baum was wrongly decided.19 For the following three reasons, we disagree.
First, in Pacific Telephone, the Supreme Court did not distinguish between state and federal courts when it held that Guarantee Clause claims were not justiciable. The Court framed the question before it as “whether the enforcement of that provision, because of its political character, is exclusively committed to Congress or is judicial in its character” 223 US at 137 (emphasis added). See also id. at 133 (stating that the issue in the case is “whether it is the duty of the courts or the province of Congress to determine when a State has ceased to be republican in form and to enforce the guarantee of the Constitution on that subject” (emphasis added)). The Court specifically held that the Guarantee Clause issues *624presented in Pacific Telephone, “in their very essence, are * * * definitely determined to he political and governmental, and embraced within the scope of the powers conferred upon Congress, and not therefore within the reach of judicial power.” Id. at 151 (emphasis added). That holding is written broadly and is not limited, by its wording, to federal courts. Moreover, the Court’s conclusion that the issue presented in Pacific Telephone is one “exclusively committed to Congress” forecloses the argument that the issue is one that also maybe considered by state courts; if the question is one exclusively committed to Congress’judgment, then it is not a proper subject for either state or federal courts.
The second reason why we disagree with Vanzant’s argument that Guarantee Clause claims are justiciable in state courts, although not in federal courts, is that the United States Supreme Court has twice affirmed state Supreme Court decisions that have held that Guarantee Clause claims do not present justiciable controversies in state courts. In State v. Mountain Timber Co., 75 Wash 581, 590, 135 P 645, 649 (1913), aff'd 243 US 219, 37 S Ct 260, 61 L Ed 685 (1917), the Washington Supreme Court refused to consider a Guarantee Clause challenge to a state insurance law, reasoning:
“The contention that the Industrial Insurance Law is in violation of the guarantee of a republican form of government needs no discussion. It is disposed of by reference to the late cases. Pacific States Telephone & Telegraph Co. v. Oregon, 223 U.S. 118, 32 Sup. Ct. 224, 56 L. Ed. 377; Kier-nan v. Portland, 223 U.S. 151, 32 Sup. Ct. 231, 56 L. Ed. 386.”
The Washington court relied on the Supreme Court’s holdings in Pacific Telephone and Kiernan — that Guarantee Clause claims were nonjusticiable — to dispose of the Guarantee Clause claim before it. Mountain Timber was appealed to the Supreme Court, which similarly concluded that the Guarantee Clause claims raised in that case were nonjusti-ciable, citing both Pacific Telephone and Kiernan. Mountain Timber, 243 US at 234-35. Accordingly, that Court affirmed the judgment of the Washington Supreme Court, id. at 246, including the part of its opinion that concluded that Guarantee Clause claims are not justiciable in state courts.
*625Similarly, in Borden v. Louisiana State Board of Education, 168 La 1005, 1023, 123 So 655, 661 (1928), the Louisiana Supreme Court relied on Pacific Telephone to conclude that a Guarantee Clause claim brought in that case presented a “question [that] is a political one, which does not fall within the jurisdiction of the courts.” Therefore, the Louisiana court refused to consider the merits of that claim. The Louisiana court relied on Borden when it issued its decision in Cochran v. Louisiana State Board of Education, 168 La 1030, 1032-33, 123 So 664 (1928), aff'd 281 US 370, 50 S Ct 335, 74 L Ed 913 (1930). The United States Supreme Court affirmed the Cochran decision. Cochran, 281 US at 375. In doing so, it acknowledged that the Louisiana court’s decision in Borden was the basis for Cochran. Id. at 374. Accordingly, when the Supreme Court stated, in Cochran, that Guarantee Clause claims present nonjusticiable controversies and affirmed the judgment of the Louisiana court, ibid., the Court affirmed the Louisiana court’s holding that Guarantee Clause claims are not justiciable in state courts.
The third reason why we disagree with Vanzant’s argument that Guarantee Clause claims are justiciable in state courts, even though they are not justiciable in federal courts, is that such a conclusion would run afoul of the principle that the Supreme Court is the final arbiter of the federal constitution and that it sits, in part, to ensure that the state courts interpret federal law uniformly. See Martin v. Hunter, 14 US (1 Wheat) 304, 348, 4 L Ed 97 (1816) (“Judges of equal learning and integrity, in different states, might differently interpret * * * the constitution itself: if there were no revising authority to control these jarring and discordant judgments, and harmonize them into uniformity, * * * the constitution of the United States would be different, in different states, and might, perhaps, never have precisely the same construction, obligation or efficiency, in any two states. The public mis-chiefs that would attend such a state of things would be truly deplorable; * * * and the appellate jurisdiction must continue to be the only adequate remedy for such evils.”). Under Van-zant’s construct, each state would be free to interpret the Guarantee Clause in a different way, but the Supreme Court would be without power to ensure the uniform interpretation of that provision of the federal constitution. See also Oregon *626v. Hass, 420 US 714, 719 n 4, 95 S Ct 1215, 43 L Ed 2d 570 (1975) (state courts may not interpret a provision of the federal constitution to give individuals more rights than have been given under an interpretation of the same provision by the United States Supreme Court).
Vanzant points to numerous law review articles to support his assertion that Guarantee Clause claims are jus-ticiable in state courts, notwithstanding Pacific Telephone and Baum. For the reasons that follow, we are not persuaded by those articles.
First, many of the commentators who have written on the justiciability of Guarantee Clause claims argue only that such claims should be justiciable, not that they are jus-ticiable.20 While that certainly is a valid exercise for a scholar, this court is not free to reject binding precedent from the United States Supreme Court on a question of federal law.
Other commentators assume, without detailed analysis, that state courts may decide Guarantee Clause claims.21 The absence of analysis makes those commentators unpersuasive.
*627The commentators who do consider the question in detail and who conclude that Guarantee Clause claims are justiciable in state courts base their conclusion on the theory that the United States Supreme Court does not impose its federal constitutional justiciability requirements on state courts, even when state courts address federal questions.22 Those commentators do not, however, address the impact of the Supreme Court’s holdings in Cochran or Mountain Timber, nor do they adequately distinguish the Supreme Court’s broad pronouncement in Pacific Telephone, 223 US at 137, that Guarantee Clause claims of the type raised here are “exclusively committed to Congress.” In the light of our foregoing discussion, we do not find the arguments of the commentators convincing.
Finally, Vanzant also argues that, even assuming that the Supreme Court’s cases have held that Guarantee Clause claims are not justiciable in state courts, recent statements from that Court suggest a retreat from that position. In support of his argument, he points to a passage in New York v. United States, 505 US 144, 112 S Ct 2408, 120 L Ed 2d 120 (1992).
In New York, the Court held that certain provisions of a federal law dealing with the disposal of low-level radioactive waste violated the federal constitution. 505 US at 149. The Court rejected a Guarantee Clause claim raised by the party challenging the statute. Id. at 183-86. The Court stated that it need not decide whether Guarantee Clause claims raise justiciable controversies, because the challenged law in that case could not “reasonably be said to deny any State a *628republican form of government.” Id. at 185. In reaching that conclusion, the Court wrote:
“[R]ecently, the Court has suggested that perhaps not all claims under the Guarantee Clause present nonjusticiable political questions. Contemporary commentators have likewise suggested that courts should address the merits of such claims, at least in some circumstances.”Ibid, (citation omitted).
Obviously, that passage means that at some future date, “at least in some circumstances,” some Guarantee Clause claims may raise justiciable controversies. However, in New York, the Court did not hold that any Guarantee Clause claim is justiciable. In addition, in New York, the issue arose in the context of whether a state could invoke the Guarantee Clause as a basis for limiting federal intrusion into state autonomy. The Court has shown no inclination to allow individual litigants to rely on the Guarantee Clause to challenge a state action on the basis that that action infringes on federal constitutional rights. We will not fail to follow the applicable holding in Pacific Telephone because of a factually distinguishable dictum contained in New York.
Vanzant’s claim under the Guarantee Clause is not justiciable.
B. Equal Protection
Defendant’s final argument is that he was right for the right reason: that ORS 137.700 violates the Equal Protection Clause of the United States Constitution. The Fourteenth Amendment provides in part:
“No State shall * * * deny to any person within its jurisdiction the equal protection of the laws.” US Const, Amend XIV, § 1.
In deciding this case, defendant ruled that
“the same identical sentence mandated by the statute may constitute cruel and inhuman punishment in one fact situation and an appropriate sentence in another. * * * If the application as to one defendant is unconstitutional, it would necessarily be unconstitutional to all within the class as a denial of equal protection of the laws.”
*629In this court, defendant further contends:
“Measure 11 prohibits trial courts from imposing prison sentences of less than the measure’s prescribed terms. Because of that, an offender such as defendant Vanzant, whose Measure 11 minimum is greater than the presumptive maximum sentence he would get under the guidelines, has no meaningful way to seek a mitigated sentence.”
Based on that premise, defendant asserts that ORS 137.700 is subject to “strict scrutiny”23 under federal law, for two reasons: First, because the voters adopted Measure 11 at the same time as a companion, Measure 10, which amended the state constitution to change the means by which Measure 11 can be amended in the future; and, second, because Measure 11 violates “fundamental rights against cruel and unusual punishments, and of allocution.”
Measure 10 (1994) enacted Article IV, section 33, of the Oregon Constitution. It provides in part that “a two-thirds vote of all the members elected to each house shall be necessary to pass a bill that reduces a criminal sentence approved by the people.”
Whatever the meaning or merits of Measure 10, it is not at issue in this proceeding. Measure 10 and Measure 11 operate independently. Neither was dependent on the other for enactment.
We conclude, therefore, that the existence of Measure 10 does not require strict scrutiny of Measure 11. We need not and do not decide whether Measure 10 itself would be subject to strict scrutiny.
Defendant’s second argument for strict scrutiny rests on the assertion that convicted persons have a “fundamental right” to be free from the infliction of cruel and unusual punishment and to allocate. With respect to cruel and unusual punishment, the pertinent precedent is Chapman v. *630United States, 500 US 453, 111 S Ct 1919, 114 L Ed 2d 524 (1991). In that case, the Court rejected an argument that a provision of the federal sentencing guidelines, providing for mandatory minimum sentences for drug crimes, should be subjected to strict scrutiny because the statute implicated fundamental rights. 500 US at 464-65. The Court instead utilized a “rational basis” test and upheld the statute. Id. at 465.
With respect to the assertion that the federal right of allocution is a “fundamental right” that calls for strict scrutiny, we have explained, earlier in this opinion, why ORS 137.700 does not infringe the right of allocution.24 Because the statute does not infringe the right of allocution, the purportedly “fundamental” nature of that right does not affect the Equal Protection analysis.
We conclude that the applicable federal law calls for use of the rational-basis test. Defendant argues in the alternative that ORS 137.700 does not survive the rational-basis test:
“[T]he measure purports to serve four purposes: incapacitation, deterrence, sentence predictability, and sentence comparability. The first two purposes are legitimate, but the measure is not rationally related to them. The latter two purposes are illegitimate. The measure does not bear a rational relation to some legitimate end. Defendant judge correctly ruled that it violates equal protection.”
Defendant’s first assertion plainly is incorrect. An imprisoned felon is incapacitated from committing further crimes in society at large during the term of incarceration.
With respect to the second assertion, defendant cites many sources for the proposition that imprisonment is an ineffective deterrent. His policy point may be debatable, but *631it is legislatively debatable, and the people (acting in their legislative role) have chosen against him. Moreover, his argument proves too much. If ORS 137.700 is not rationally related to the goal of deterrence simply because prison does not work, then no statute prescribing incarceration would survive even the rational-basis test.
Defendant also asserts that a “non-selective” incarceration system is even less effective in controlling crime than is a more individualized system. However, under the rational-basis test, a statute need not “employ the least restrictive, or even the most effective or wisest, means to achieve its legitimate ends.” Jones v. Helms, 452 US 412, 425-26, 101 S Ct 2434, 69 L Ed 2d 118 (1981).
The third argument is that predictability in sentencing cannot be a legitimate end of this statute, because ORS 137.700 arbitrarily selects only certain felonies for mandatory minimum sentences. The statute is, however, directed toward violent offenses. Each covered crime involves either the unlawful use of force against a person or a serious sexual assault on a child who is incapable of consenting. Even if the statute is “underinclusive,” because it does not list all violent felonies, the Supreme Court ordinarily does not strike down criminal laws on that ground under the rational-basis test used for Equal Protection analysis. Id. at 426.
Defendant’s fourth point is that the goal of achieving comparable sentences for those who commit comparable crimes is not a legitimate end. He contends that the law thereby disadvantages judges who would prefer to impose lesser sentences. But ORS 137.700 classifies, and singles out for specified treatment, certain convicted felons, not certain judges. It is the classification among convicted persons that must be examined.
As to that classification, laws subject to rational-basis scrutiny will be upheld “so long as [the classification] bears a rational relation to some legitimate end.” Romer v. Evans, _US_ , 116 S Ct 1620, 1627, 134 L Ed 2d 855 (1996). A law may be so overinclusive or underinclusive that no rational relationship can be detected. 116 S Ct at 1627-28. *632That is not the situation here. ORS 137.700 prescribes mandatory minimum sentences for most violent felonies committed against people. In view of the penalties already prescribed by law for other violent felonies, the selection reflected in ORS 137.700 is rationally related to a legitimate end.
Finally, we note that the Equal Protection Clause does not prevent a state from increasing the punishment actually imposed for a particular crime. For example, in Dob-bert v. Florida, 432 US 282, 97 S Ct 2290, 53 L Ed 2d 344 (1977), the defendant, who had killed his children, was sentenced to death under a Florida statute that was enacted in 1972 and that later was held to be constitutional. An earlier version of the statute had been held to be unconstitutional. As a result, the sentences of all those sentenced to death under the former statute were commuted to life imprisonment. 432 US at 301. The Supreme Court held, among other things, that the imposition of a death sentence on the defendant did not deny him equal protection merely because all convicted persons who had been sentenced to death under the old statute had been resentenced to life imprisonment. Ibid.
We conclude that ORS 137.700 survives defendant’s Equal Protection challenge.
IV. CONCLUSION
None of the facial constitutional challenges mounted in this case is well taken. For that reason, defendant erred as a matter of law when he refused to apply ORS 137.700 when sentencing Vanzant. We direct the issuance of a peremptory writ of mandamus, requiring defendant to enter a corrected judgment in State v. Bobby Ron Vanzant, Jackson County Case No. 952538CC2, that imposes sentence for the crime of second-degree manslaughter in accordance with ORS 137.700(2)(e).
Peremptory writ to issue.
ORS 163.125(l)(a) provides that criminal homicide is second-degree manslaughter when “[i]t is committed recklessly.” Second-degree manslaughter is a Class B felony. ORS 163.125(2). Therefore, the maximum prison sentence allowed by law for the conviction is 10 years. ORS 161.605(2).
ORS 137.700 provides in part:
“(1) When a person is convicted of one of the offenses listed in subsection (2) of this section and the offense was committed on or after April 1, 1995, the court shall impose, and the person shall serve, at least the entire term of imprisonment listed in subsection (2) of this section. The person is not, during the service of the term of imprisonment, eligible for release on post-prison supervision or any form of temporary leave from custody. The person is not eligible for any reduction in the sentence for any reason whatsoever under ORS 421.120, 421.121 or any other statute. The court may impose a greater sentence if otherwise permitted by law, but may not impose a lower sentence than the sentence specified in subsection (2) of this section.
“(2) The offenses to which subsection (1) of this section applies and the applicable mandatory minimum sentences are:
‡ ‡ ‡ ‡
“(e) Manslaughter in the second degree, as defined in ORS 163.125[:] 75 months.”
In this opinion, we use the terms Measure 11 and ORS 137.700 interchangeably.
Because Vanzant is the real party in interest, the State Public Defender’s Office has appeared on behalf of defendant, pursuant to ORS 34.130(4). Defendant has consented to that appearance, pursuant to ORS 34.130(4) and ORAP 11.10(1).
In this case, as we have said, defendant in fact rejected many of the legal arguments now pursued by the State Public Defender’s Office on behalf of the real party in interest, Vanzant. For that reason, we will refer to Vanzant, rather than defendant, as the party who is pressing those claims that defendant rejected in the underlying criminal proceeding.
Under our mandamus jurisprudence, it is the remedy, not the statute creating the remedy, that must be “plain.” If a statute, however ambiguous, grants a *603right to an appeal respecting the disputed issue, for example, then the remedy— appeal — ordinarily precludes mandamus. Accordingly, it is our task simply to construe the relevant appellate statute. Compare the separate opinion of Durham, J., 324 Or at 631-37.
With respect to murder, the minimum sentence prescribed by ORS 137.700 is the same as the minimum sentence prescribed by ORS 163.115(5)(b) — 25 years.
There are sound prudential reasons for following the principle stated in the text. Among them are a need for stability and certainty in the understanding of statutes and a respect for the interplay between the roles of the legislative and judicial branches of government in the context of statutory interpretation.
See Moore v. Missouri, 159 US 673, 678, 16 S Ct 179, 40 L Ed 301 (1895) (under the federal Equal Protection Clause, “the State may undoubtedly provide that persons who have been before convicted of crime may suffer severer punishment for subsequent offences than for a first offence against the law, and * * * a different punishment for the same offence may be inflicted under particular circumstances, provided it is dealt out to all alike who are similarly situated” (citations omitted)).
See Note, Procedural Due Process at Judicial Sentencing for Felony, 81 Harv L Rev 821, 832-33 (1968) (“since the common law judge generally had no discretion as to the quantum of punishment in felony cases, the point of [allocution] was not to elicit mitigating evidence or a plea for leniency, but to give the defendant a formal opportunity to present one of the strictly defined legal reasons which required the avoidance or delay of sentencing: he was not the person convicted, he had benefit of clergy or a pardon, he was insane, or if a woman, she was pregnant” (footnotes omitted)).
As previously stated, ORS 137.700(1) provides that “[t]he court may impose a greater sentence if otherwise permitted by law.” The felony sentencing guidelines *614permit upward departures in some circumstances, and the sentencing court also may impose consecutive sentences under ORS 137.123.
Vanzant did not make either claim in the underlying case.
At the election of November 5,1996, the people amended Article I, section 15, of the Oregon Constitution, by adopting Measure 26 (1996). Because of our disposition of this case, we need not and do not consider any question related to Measure 26.
A somewhat different principle applies when the punishment is for contempt of court. See State ex rel Oregon State Bar v. Lenske, 243 Or 477, 492-93, 405 P2d 510, 407 P2d 250 (1965) (legislature may not destroy or unreasonably abridge court’s inherent power to punish for contempt), cert den 384 US 943 (1966).
But see note 13, above.
As discussed above, a judge retains discretion to impose more than the minimum and to impose consecutive sentences.
Article IV, section 4, of the United States Constitution, provides in part:
“The United States shall guarantee to every State in this Union a Republican Form of Government * *
On the merits, Vanzant asserts that Measure 11 violates the Guarantee Clause
“in two interrelated ways.
“a. The measure’s history — principally, the proponents’ statements in the Voters’ Pamphlet — is so replete with inaccuracies that it short-circuited the deliberative process. Rather than mediate majoritarian passion for the measure, the inaccuracies inflamed it. Under the [Guarantee] Clause, such a failure of the deliberative process is fatal.
“b. Measure 11 is affirmative legislation, for it requires the judiciary to impose, and the executive to administer, particular sentences. Owing to the guardian-ward relationship between Measure 10’s veto-proof supermajority requirement, and Measure ll’s minimum sentences, the legislature cannot readily amend Measure 11, as it can most every other type of statute. Because Measure 11 is affirmative legislation which the legislature cannot amend ‘at will,’ it violates the [Guarantee] Clause test which this court announced in Kadderly v. Portland[, 44 Or 118, 74 P 710, 75 P 222 (1904)].”
Minor v. Happersett, 88 US (21 Wall) 162, 22LEd 627 (1874), and In re Duncan, 139 US 449, 461, 11 S Ct 573, 35 L Ed 219 (1891), which the separate opinion of Durham, J., cites, 324 Or at 646, 650, predated Pacific Telephone by decades and are less specific to the present issue than is Pacific Telephone. Therefore, Minor and Duncan are not binding. The Federalist No. 10 (James Madison) (B.F. Wright ed, 1961), entitled The Size and Variety of the Union as a Check on Faction, 324 Or at 647-49, materials likewise cannot overcome binding Supreme Court precedent.
Vanzant relies on the following passage from this court’s opinion in State v. Montez, 309 Or 564, 603-04, 789 P2d 1352 (1990):
“The United States Supreme Court has provided no practical guidance as to what constitutes a ‘republican form of government,’ because that Court has held that, within the federal government, the enforcement of the guarantee is assigned not to the federal courts but to the political branches. Thus, claims arising under Article IV, section 4, do not present justiciable controversies in federal courts.
“That does not mean that the states may not adjudicate the compatibility of state law with the guarantee clause. This court addressed that issue with regard to Oregon’s initiative system in Kadderly v. Portland, 44 Or 118, 144-45, 74 P 710, 75 P 222 (1903) (initiative and referendum does not abolish or destroy the republican form of government, or substitute another in its place). See Kiernan v. Portland, 57 Or 454, 469-80, 111 P 379, 112 P 402 (1910); Oregon v. Pacific States Tel. & Tel. Co., 53 Or 162, 166, 99 P 427 (1909).” (Emphasis added; citation omitted; footnote omitted.)
Vanzant’s reliance on that passage in Montez is misplaced for three reasons. First, that statement is dictum, because it was not necessary to the outcome of the case. Second, that passage is not a complete assessment of the state of the law at that time. In Montez, the court cited Kadderly, Kieman, and this court’s decision in Pacific Telephone to support its statement that Guarantee Clause claims might be justiciable in this court. All those cases were decided before the Supreme Court declared, in Pacific Telephone, that Guarantee Clause claims were not justiciable. In Montez, the court failed to cite or acknowledge the holding in Baum, the only case from this court issued after the Supreme Court’s decision in Pacific Telephone, which is directly on point. The third reason why defendant’s reliance on Montez is misplaced is that, if the United States Supreme Court has held squarely that Guarantee Clause claims are not justiciable in state and federal courts, then we lack the authority to determine that such claims are justiciable in state courts. See Oregon v. Hass, 420 US 714, 719 n 4, 95 S Ct 1215, 43 L Ed 2d 570 (1975) (state courts may not interpret a provision of the federal constitution to give individuals more rights than have been given under an interpretation of the same provision by the United States Supreme Court). We read the Supreme Court’s pertinent cases as so holding.
See Cynthia L. Fountaine, Note, Lousy Lawmaking: Questioning the Desirability and Constitutionality of Legislating by Initiative, 61 S Cal L Rev 733, 761 (1988) (so arguing); Douglas H. Hsiao, Note, Invisible Cities: The Constitutional Status of Direct Democracy in a Democratic Republic, 41 Duke LJ 1267, 1291-96 (1992) (same).
See Jesse H. Choper, Observations on the Guarantee Clause — As Thoughtfully Addressed by Justice Linde and Professor Rule, 65 U Colo L Rev 741, 743 (1994) (accepting, without discussing, that Guarantee Clause claims are justiciable in state courts); Hans A. Linde, Who is Responsible for Republican Government?, 65 U Colo L Rev 709,714 (1994) (concluding, in a paragraph, that the Supreme Court’s decision in Pacific Telephone does not preclude state courts from considering Guarantee Clause claims); Thomas C. Berg, Comment, The Guarantee of Republican Government: Proposals for Judicial Review, 54 U Chi L Rev 208, 225 (1987) (concluding, in a sentence, that Guarantee Clause claims are justiciable in state courts); Debra F. Salz, Note, Discrimination-Prone Initiatives and the Guarantee Clause: A Role for the Supreme Court, 62 Geo Wash L Rev 100, 112 (1993) (same); Arthur E. Bonfield, The Guarantee Clause of Article IV, Section 4: A Study in Constitutional Desuetude, 46 Minn L Rev 513, 554 n 180 (1962) (stating that, even if Pacific Telephone bars federal courts from enforcing the Guarantee Clause, it does not prohibit state courts from doing so, because the Supreme Court does not control state court jurisdiction); Laurence H. Tribe, American Constitutional Law § 5-23, at 398 (2d ed 1988) (noting that, although the Guarantee Clause does not protect individuals, it may confer “judicially enforceable rights upon states as states” (emphasis in original)).
See Erwin Chemerinsky, Cases Under the Guarantee Clause Should Be Justiciable, 65 U Colo L Rev 849, 873-74 (1994) (so arguing); Deborah Jones Merritt, The Guarantee Clause and State Autonomy: Federalism for a Third Century, 88 Colum L Rev 1, 70-78 (1988) (same); Edward A. Stelzer, Bearing the Judicial Mantel: State Court Enforcement of the Guarantee Clause, 68 NYU L Rev 870, 895-900 (1993) (same); Hans A. Linde, When Is Initiative Lawmaking Not “Republican Government’’?, 17 Hastings Const LQ 159, 160-63 (1989) (stating that, although the United States Supreme Court’s approach “allocates federal responsibility for the guarantee within the branches of the federal government, * * * it does not relieve the states of the obligation to maintain republican forms of government”). Cf. Akhil R. Amar, The Central Meaning of Republican Government: Popular Sovereignty, Majority Rule, and the Denominator Problem, 65 Univ of Colo L Rev 749,756 & nn 26 & 27 (1994) (criticizing Linde’s “anti-direct democracy” approach toward the Guarantee Clause).
In Harper v. Virginia Bd. of Elections, 383 US 663, 670, 86 S Ct 1079, 16 L Ed 2d 169 (1966), the Supreme Court held that, “where fundamental rights and liberties are asserted under the Equal Protection Clause, classifications which might invade or restrain them must be closely scrutinized and carefully confined.” The Court later explained what “strict scrutiny” entails: The challenged law must be “necessary to promote a compelling state interest.” Kramer v. Union School District, 395 US 621, 627, 89 S Ct 1886, 23 L Ed 2d 583 (1969).
See generally Hill v. United States, 368 US 424, 428, 82 S Ct 468, 7 L Ed 2d 417 (1962). There, the Court held that the failure to allow an opportunity for allocution was not cognizable in habeas corpus, because “[i]t is an error which is neither jurisdictional nor constitutional.” (Emphasis added.) The Supreme Court left open the question whether a refusal to permit allocution upon request would entitle a petitioner to habeas corpus relief. Id. at 429. But the mere absence of an opportunity for allocution was not of constitutional magnitude, as the absence of a “fundamental” right would be.