Travis Littlejohn was convicted of voluntary manslaughter while armed in connection with the stabbing death of Nadir Fa-rooq. This court affirmed his conviction on direct appeal. Littlejohn v. United States, No. 05-CF-359, Mem. Op. & J., 963 A.2d 167 (D.C. Nov. 17, 2008). During the pendency of his direct appeal, Littlejohn filed a motion to vacate his conviction pursuant to D.C.Code § 23-110 (2001), alleging that trial counsel had been constitutionally ineffective for failing to object to the trial judge’s order excluding Little-john’s friends and family from the courtroom and thereby waiving his Sixth Amendment right to a public trial. The trial court denied this claim without a hearing. Because the record does not permit us to resolve the issue, we remand the case to the trial court for an evidentiary hearing to determine whether trial counsel’s waiver of Littlejohn’s right to a public trial constituted ineffective assistance of counsel.
*1036I. Background and Procedural History
While he was at a “go-go” party one night in September 2002, Nadir Farooq was fatally stabbed in the neck after a confrontation with Littlejohn. The government charged Littlejohn with Farooq’s murder, relying primarily on the testimony of Farooq’s sister, Nailah, who testified that she saw Littlejohn swing at Farooq and saw Farooq fall to the floor bleeding. During the course of Littlejohn’s trial, hostilities arose between Littlejohn’s family and friends and the family and friends of Farooq.
At 4:00 p.m. on the first day of trial, the judge took a break during Nailah Farooq’s testimony. During this break, Littlejohn’s counsel brought to the court’s attention the conflict between the two groups. The transcript of the bench conference that ensued is seriously incomplete, consisting of many “indiscernible” statements from Littlejohn’s counsel, the prosecutor, and the judge, making it difficult to determine the nature of the conflict and the proposed solutions. Apparently, there had been “a huge melee in front of the courthouse,” and as the parties and the judge discussed how to respond, Littlejohn’s counsel stated, “I can keep (indiscernible) and send the other group home.” The judge responded: “Why can’t you keep your group here, since you’re going to be (indiscernible) PD-140s.”
The court reporter was unable to discern much of the remaining brief discussion, but the judge soon stated that he would speak to each group. He brought in Farooq’s friends and family and addressed them first:
It’s been brought to my attention about the competing of the sides here, and I know it’s a very stressful situation, and matters may have occurred at last court proceedings, but it’s my intention and my desire that that does not repeat itself. If it does, I have no other choice but to hold people in contempt and to incarcerate them for a substantial period of time if there is any arguments or fights, either in my courtroom, in the corridor, in the lobby, or outside of this courthouse, or any other way connected to this case. To prevent that, I’m ordering [any court observers on behalf of the decedent] to be in this courtroom at 4:30 on my right side, where [the prosecutor] is standing on that side, having a seat there by 4:30 each day until you are excused.
The judge then brought in Littlejohn’s friends and family, explaining that because of the “tension between both sides ... I want you all to make sure that you ... leave this courtroom, courthouse at 4 o’clock each day.... This trial will be going on from 10:30 in the morning, but you are ordered to leave this courthouse at 4 o’clock each day.” The court then dismissed them for the day: “So it’s 4 o’clock today, so you all can go at this time ... and we’ll see you ... at 10:30 tomorrow morning.”
The trial then resumed with Nailah Fa-rooq’s direct examination and ended for the day at “about 4:40” p.m. The trial continued over the next two days, and the jury ultimately found Littlejohn guilty of armed manslaughter.1
In his direct appeal, Littlejohn argued that the trial court had violated his Sixth Amendment right to a public trial when it closed the courtroom to his friends and family while a key prosecution witness was still testifying. This court affirmed his conviction, holding that, although “the right to a public trial is fundamental,” it is nonetheless subject to waiver, and Little-*1037john’s counsel waived his objection to the closure order when he “actively supported (and may even have proposed) the concept of staggering the departure times of the two groups in order to minimize the risk of a fracas.” Littlejohn, No. 05-CF-359, Mem. Op. & J., at 1-2.
While his direct appeal was still pending, Littlejohn filed a § 23-110 motion to vacate his conviction. In that motion, he argued that his trial counsel had been ineffective in failing to object to the exclusion of his family and friends, preventing the court from considering alternative solutions to address the problems raised by the conflict between the two groups and waiving Littlejohn’s right to challenge the court’s closure order on appeal.2 We pause to note that not only was Littlejohn entitled to challenge his trial counsel’s ineffectiveness in a collateral attack, but that claims of ineffective assistance of counsel are in fact more appropriately brought in a separate § 23-110 motion to vacate rather than on direct appeal. A collateral attack under § 23-110 permits the trial court to hold an evidentiary hearing, if necessary, and develop a record “regarding matters relevant to the ineffectiveness claim that do not appear in the record of the case on direct appeal.” Shepard v. United States, 533 A.2d 1278, 1280 (D.C.1987); see also Mack v. United States, 570 A.2d 777, 785 (D.C.1990) (“This court is in the best position to assess a claim of ineffective assistance of counsel where a separate motion has been filed and an appropriate record has been made”); Ramsey v. United States, 569 A.2d 142, 146 (D.C.1990) (“Ineffective assistance of counsel is the type of serious defect which is typically not correctable on direct appeal and is therefore an appropriate ground for a collateral attack.”).
At the hearing on Littlejohn’s motion, the parties and the court engaged in a preliminary discussion about what issues would be explored at the hearing. In discussing the courtroom closure claim, Litt-lejohn’s counsel explained that the issue was whether “[trial] counsel essentially waiv[ed] [Littlejohn’s] right to a public and open trial without consulting with him.” The prosecutor objected to a hearing on this claim for two reasons: she argued that this claim was “brought up on appeal” and “addressed by the Court of Appeals,” and further, she “had absolutely no idea that defense was going to bring this up” because “it wasn’t in the pleadings.” On the merits, the prosecutor reasoned that “above and beyond that,” defense counsel was not required to consult with his client about whether to propose staggered departures.
Littlejohn’s counsel responded by arguing that the Sixth Amendment right to a public trial is a personal right that only Littlejohn himself could waive and because his trial counsel had not consulted with him about the issue, his public trial right *1038had not been properly waived and thus this court’s order affirming Littlejohn’s conviction on direct appeal did not address that particular claim. Littlejohn’s counsel also asserted that she had indeed raised the claim in her written § 23-110 motion. She did not, however, press the specific claim she had made in her written motion that trial counsel’s deficient performance was his failure to object to the exclusion of Littlejohn’s friends and family.
The trial court agreed with the government and summarily denied Littlejohn’s public trial claim without hearing any testimony, concluding that (1) the claim was foreclosed because the court of appeals had already determined that Littlejohn had waived the closure issue, (2) there was no apparent prejudice to Littlejohn as a result of the closure, and in any case, (3) Littlejohn had not challenged his trial counsel’s failure to consult with him about the closure in his § 23-110 motion.
On appeal from the denial of his § 23-110 motion, Littlejohn argues that his counsel was ineffective both for failing to consult with him and for failing to object to the closure. Littlejohn seems to have conflated two issues in his § 23-110 motion: (1) trial counsel’s act of supporting, and perhaps even proposing, a partial closure of the courtroom without consulting Little-john, and (2) trial counsel’s failure to object to the closure of the courtroom, thereby obviating the need for the trial judge to consider alternatives that would have been less intrusive on Littlejohn’s public trial right and failing to preserve the issue for appeal.
In affirming Littlejohn’s conviction on direct appeal, we held that by failing to object to the court’s closure order — and, in fact, by “actively support[ing]” the idea— Littlejohn’s counsel had waived Little-john’s right to challenge the exclusion of his supporters. Littlejohn, No. 05-CF-359, Mem. Op. & J. at 2. This holding, however, did not preclude Littlejohn from challenging, in a collateral attack, trial counsel’s failure to object. And that is precisely the challenge that Littlejohn raised in his written § 23-110 motion; the government responded to this argument in its brief. The issue of ineffectiveness that Littlejohn did not raise in his written motion — but that he brought up at the hearing on his motion — was counsel’s failure to consult with him before suggesting to the trial court that Littlejohn’s supporters leave the courtroom early. To the extent that Littlejohn argues that the Sixth Amendment right to a public trial is a personal right that only the defendant may waive, we agree with the government and trial court that Littlejohn waived this claim when he neglected to articulate it in his § 23-110 motion and did not raise it until the hearing on his motion. We do not, however, deem waived Littlejohn’s claim that his trial counsel was ineffective for failing to object to the court’s closure order.3 We turn now to that issue.
*1039II. Discussion
In order to prevail on a claim that trial counsel was constitutionally ineffective for failing to object to the exclusion of Little-john’s friends and family, Littlejohn must show that his “counsel’s representation fell below an objective standard of reasonableness” and that “the deficient performance prejudiced his defense.” Strickland v. Washington, 466 U.S. 668, 687-88, 104 S.Ct. 2052, 80 L.Ed.2d 674 (1984). The question whether trial counsel was ineffective is intertwined with the question whether the trial court’s closure order violated the Sixth Amendment right to a public trial. If there was no Sixth Amendment violation when the court ordered Littlejohn’s friends and family to leave the courtroom, we could not say that trial counsel was deficient in failing to object or that the failure to object prejudiced Little-john, for closure could have been ordered even over an objection. If, however, the judge closed the courtroom in violation of Littlejohn’s right to a public trial, counsel’s waiver of that right may have amounted to ineffective assistance of counsel.
A. The Sixth Amendment Right to a Public Trial
The Sixth Amendment guarantees that “[i]n all criminal prosecutions, the accused shall enjoy the right to a ... public trial.” U.S. Const, amend. VI. This guarantee “has always been recognized as a safeguard against any attempt to employ our courts as instruments of persecution.” Kleinbart v. United States, 388 A.2d 878, 881 (D.C.1978). The requirement that criminal trials be open to the public is primarily “ ‘for the benefit of the accused; that the public may see he is fairly dealt with and not unjustly condemned, and that the presence of interested spectators may keep his triers keenly alive to a sense of their responsibility and to the importance of their functions.’” Tinsley v. United States, 868 A.2d 867, 873 (D.C.2005) (quoting Waller v. Georgia, 467 U.S. 39, 46, 104 S.Ct. 2210, 81 L.Ed.2d 31 (1984)). “[A] criminal defendant’s family and friends are the people most likely to be interested in, and concerned about, the defendant’s treatment and fate,” and their presence at trial is particularly important. Id.; see also In re Oliver, 333 U.S. 257, 272, 68 S.Ct. 499, 92 L.Ed. 682 (1948) (“[A]n accused is at the very least entitled to have his friends, relatives and counsel present, no matter with what offense he may be charged.”). Indeed, “if family and friends are excluded from the trial, there may be no other members of the public who are interested or concerned enough to attend at all.” Tinsley, 868 A.2d at 873. Although a “trivial, inadvertent courtroom closure” would not offend the right to be tried in open court, so important is the guarantee that “even partial closure of a criminal proceeding,” especially when it is the defendant’s friends and family that are excluded, may violate the Sixth Amendment right to a public trial.4 Id.; see also *1040Kleinbart, 388 A.2d at 881, 883 (reversing a conviction where the courtroom was closed for “approximately one hour for no articulated reason” during a five-day trial) (emphasis omitted).
Like most rights, of course, the right to a public trial is not absolute. “ ‘[Considerations of preserving order, protecting the parties or witnesses, and maintaining confidentiality’ ” may warrant closing a criminal proceeding in some manner. Tinsley, 868 A.2d at 874 (quoting Kleinbart, 388 A.2d at 882). However, “ ‘[i]t is only under the most exceptional circumstances that limited portions of a criminal trial may be closed even partially to the public.’ ” Tinsley, 868 A.2d at 874 (quoting Kleinbart, 388 A.2d at 883); see also Waller, 467 U.S. at 45, 104 S.Ct. 2210 (holding that “[s]uch circumstances [under which “the right to an open trial may give way”] will be rare, and the balance of interests must be struck with special care”). Before a trial court may exclude members of the public from portions of a criminal proceeding, four criteria must be met: “[1] the party seeking to close the hearing must advance an overriding interest that is likely to be prejudiced, [2] the closure must be no broader than necessary to protect that interest, [3] the trial court must consider reasonable alternatives to closing the proceeding, and [4] it must make findings adequate to support the closure.” Waller, 467 U.S. at 48, 104 S.Ct. 2210.
Analysis of the first factor — the interest justifying closure — may incorporate the degree of closure, but the interest must “override” the defendant’s Sixth Amendment right even when the courtroom is closed to some spectators and not all and even when only a portion of the proceeding is closed. As we noted in Tinsley, some “degrees of partial closure ... might approach a total closure in practical effect.” Tinsley, 868 A.2d at 874. Rather than employ different standards for determining whether the interest at stake justifies closure, we have adopted the Second Circuit’s en banc holding in Ayala v. Speckard, 131 F.3d 62 (2d Cir.1997), which instructs the trial judge to “ ‘recognize that open trials are strongly favored, to require persuasive evidence of serious risk to an important interest in ordering any closure, and to realize that the more extensive is the closure requested, the greater must be the gravity of the required interest and the likelihood of risk to that interest.’ ”5 Tinsley, 868 A.2d at 874 (quoting Ayala, 131 F.3d at 70).
Fighting between supporters of Little-john and supporters of Farooq had undoubtedly become a security concern at Littlejohn’s trial, and “preserving order” is *1041an interest that may warrant the closure of a proceeding. Kleinbart, 388 A.2d at 882. We are less sure whether the decision to exclude only Littlejohn’s supporters— those members of the public “most likely to be interested in, and concerned about” Littlejohn’s treatment, Tinsley, 868 A.2d at 873—was “no broader than necessary” to protect the interest in courtroom security. See English v. Artuz, 164 F.3d 105, 109 (2d Cir.1998) (exclusion of defendant’s family during testimony of one witness was unnecessary to protect witness from threat of harm when excluding only codefendant’s family members, of whom the witness was afraid, would have sufficed). Not only might there have been a reasonable alternative to excluding members of the public, but the judge’s decision to stagger departure times by ordering Littlejohn’s supporters to leave the courtroom early and not Farooq’s supporters may have unreasonably favored the victim’s interests over the defendant’s Sixth Amendment right.
The Supreme Court has recently confirmed that, with regard to the third Waller factor — consideration of alternatives to closing the proceeding — “trial courts are required to consider alternatives to closure even when they are not offered by the parties,” and even when the closure is partial.6 Presley v. Georgia, 558 U.S. 209, 214, 130 S.Ct. 721, 175 L.Ed.2d 675 (2010). In this case, however, trial counsel seems to have supported, and may have been the one to propose, the order that Littlejohn’s “group” leave the courtroom early. Under these circumstances, it is difficult to say that the judge had an obligation to reject counsel’s affirmative support, and possible proposal, in favor of alternatives, such as requiring that Farooq’s friends and family be the group to leave early. Still, we are left to speculate why that alternative, among others, apparently received no consideration from any of the trial participants — defense counsel, the prosecution, or the trial judge.
Finally, Waller requires that the trial judge “make findings adequate to support the closure.” A “lengthy articulation of [the judge’s reasons] is not always necessary” and the “stated reasons are to be evaluated in light of the entire record and by reference to the scope of the closure they support.” Tinsley, 868 A.2d at 880. The judge was clear that he was ordering Littlejohn’s supporters to leave the courtroom early and requiring Farooq’s supporters to remain in the courtroom until the end of the trial day in order to prevent “any arguments or fights, either in my courtroom, in the corridor, in the lobby, or outside of this courthouse, or any other way connected to this case.” The question is whether the trial court’s articulated reasons support the exclusion of Littlejohn’s friends and family for at least thirty minutes of an important part of Littlejohn’s trial, and perhaps even longer.
The four Waller criteria “require the trial judge ... to make a number of contextual, fact-specific judgments,” which are committed to the judge’s “informed discretion.” Tinsley, 868 A.2d at 875. There is no abuse of discretion if the trial court’s decision to exclude Littlejohn’s supporters from part of the trial “had a firm factual foundation and was founded upon correct legal standards, i.e. the Waller criteria.” Tinsley, 868 A.2d at 875 (citations and internal quotation marks omitted). In this case, the trial judge did not engage in *1042an analysis of the Waller factors, and there was no evidentiary hearing on this claim as part of the § 23-110 proceedings. The trial record is far from illuminating, but we are skeptical that the exclusion of Little-john’s supporters for at least thirty minutes of a key prosecution witness’s testimony satisfied the Waller criteria.
If the exclusion of Littlejohn’s supporters did not comport with the Waller factors, trial counsel’s participation in this exclusion may have fallen “below an objective standard of reasonableness.” Strickland, 466 U.S. at 688, 104 S.Ct. 2052. Without the benefit of an evidentiary hearing on the issue, we cannot determine whether this decision was part of a sound trial strategy, to which we would owe deference under Strickland. See id. at 689, 104 S.Ct. 2052. For example, Littlejohn’s counsel perhaps could have concluded that the disruptions in the courtroom would have had a negative effect on the jury, especially if they seemed to be caused by Littlejohn’s supporters. Nevertheless, we are likewise skeptical that a sound trial strategy would involve advocating for the exclusion of the defendant’s friends and family, given the particular importance of having those members of the public in attendance.
B. Prejudice
If Littlejohn can show that counsel’s failure to object constituted deficient performance, he then will have to establish that he was prejudiced by that deficiency. The question is what standard of prejudice to apply. A violation of the right to a public trial is considered a structural defect, a class of constitutional errors that “defy analysis by ‘harmless-error’ standards because they affect the framework within which the trial proceeds,” as opposed to trial errors, which “occur[] during presentation of the case to the jury” and “may be quantitatively assessed in the context of other evidence presented in order to determine” harmlessness. United States v. Gonzalez-Lopez, 548 U.S. 140, 148, 126 S.Ct. 2557, 165 L.Ed.2d 409 (2006) (alterations and internal quotation marks omitted). Thus, if a defendant’s right to a public trial has been violated— i.e., if the four Waller criteria were not met — he need not show specific prejudice resulting from that violation. Waller, 467 U.S. at 49, 104 S.Ct. 2210 (holding that where the public trial right is violated by a courtroom closure, a defendant need not “prove specific prejudice in order to obtain relief”); see also Kleinbart, 388 A.2d at 882 (“Since an affirmative showing of prejudice is not necessary, any deprivation of the constitutional right is per se reversible.”). The rationale underlying the presumption of prejudice in this context is that “a requirement that prejudice be shown would in most cases deprive the defendant of the public trial guarantee, for it would be difficult to envisage a case in which he would have evidence available of specific injury.” Waller, 467 U.S at 49 n. 9, 104 S.Ct. 2210 (alterations and internal quotation marks omitted); see also Gonzalez-Lopez, 548 U.S. at 149 n. 4, 126 S.Ct. 2557 (structural defects such as public trial right characterized by “difficulty of assessing the effect of the error”); Kleinbart, 388 A.2d at 882. The right to a public trial, like the right to a jury trial, is one of those “basic protection^] whose precise effects are unmeasurable, but without which a criminal trial cannot reliably serve its function.” Sullivan v. Louisiana, 508 U.S. 275, 281, 113 S.Ct. 2078, 124 L.Ed.2d 182 (1993) (alteration and internal quotation marks omitted). Even in cases of partial closure, this court has held that without a finding of “strict and inescapable necessity ... [t]he closing of a trial to the public ... is per se reversible.” Kleinbart, 388 A.2d at 883.
*1043This case is not before us on direct appeal, however. This appeal is from the denial of a collateral attack alleging ineffective assistance of counsel, a claim that is traditionally analyzed under Strickland’s familiar two-prong test. Under Strickland, a defendant must show actual prejudice: “a reasonable probability that, but for counsel’s unprofessional errors, the result of the proceeding would have been different.” Strickland, 466 U.S. at 694, 104 S.Ct. 2052.
In articulating the test for prejudice, however, the Supreme Court recognized that “[i]n certain Sixth Amendment contexts, prejudice is presumed.” Strickland, 466 U.S. at 692, 104 S.Ct. 2052. To be sure, the contexts in which prejudice is presumed are few, and the Supreme Court has stressed that “only when surrounding circumstances justify a presumption of ineffectiveness” will prejudice be presumed. United States v. Cronic, 466 U.S. 648, 662 & n. 31, 104 S.Ct. 2039, 80 L.Ed.2d 657 (1984). However, we do not agree with the Eleventh Circuit that Strickland “clear[ly]” held “that in all but three exceptional circumstances prejudice must be shown before an ineffective assistance of counsel claim merits relief.” Purvis v. Crosby, 451 F.3d 734, 740 (11th Cir.2006). The Supreme Court’s discussion of three instances in which the violation of the Sixth Amendment right to counsel is presumptively prejudicial — (1) actual or constructive denial of counsel; (2) state interference with counsel’s assistance; and (3) counsel operating under a conflict of interest, Strickland, 466 U.S. at 692, 104 S.Ct. 2052—is not necessarily an exclusive list of the rare occasions when prejudice may be presumed.7 Requiring Littlejohn to prove actual prejudice as a result of trial counsel’s waiver of his public trial right would be inconsistent with the Supreme Court’s holdings that prejudice is presumed when the constitutional error is a structural defect, one that “infect[s] the entire trial process.” Brecht v. Abrahamson, 507 U.S. 619, 630, 113 S.Ct. 1710, 123 L.Ed.2d 353 (1993); see also Gonzalez-Lopez, 548 U.S. at 148-49, 126 S.Ct. 2557; Sullivan, 508 U.S. at 281, 113 S.Ct. 2078; Arizona v. Fulminante, 499 U.S. 279, 309-10, 111 S.Ct. 1246, 113 L.Ed.2d 302 (1991). If it is impossible to identify the prejudice resulting from a structural defect, it is likewise impossible to determine whether counsel’s waiver of such a “basic protection,” like the public trial guarantee, “had no effect on the judgment.” Strickland, 466 U.S. at 691, 104 S.Ct. 2052.
We are thus convinced that the rationale underlying the per se prejudicial impact of structural errors — the “precise effects are unmeasurable” — supports applying such a presumption when counsel’s deficient performance causes a structural error. Other courts of appeal have held similarly. See Johnson v. Sherry, 586 F.3d 439, 446-47 (6th Cir.2009) (“If Johnson can establish that counsel’s [failure to object to closure] was deficient, he will also' be required to demonstrate that he was prejudiced by the error.... Because the right to a public trial is a structural guarantee, if the closure were unjustified or broader than necessary, prejudice would be presumed.”); Owens v. United States, 483 F.3d 48, 64 (1st Cir.2007) (“If the failure to hold a public trial is structural error, and it is impossible to determine whether a structural error is prejudicial, we must then conclude that a defendant who is seeking to excuse a procedurally defaulted claim of *1044structural error [on the basis of ineffective assistance of counsel] need not establish actual prejudice”) (citations omitted); cf. McGurk v. Stenberg, 163 F.3d 470, 474 (8th Cir.1998) (applying the presumption of prejudice to a Strickland claim involving counsel’s failure to inform his client of his right to a jury trial because the denial of a jury trial is a “structural error subject to automatic reversal”); cf. Fortune v. United States, 59 A.3d 949, 956 (D.C.2013) (applying presumption of prejudice on plain error review where alleged error — failure to obtain valid waiver of jury trial — was structural).
Moreover, requiring Littlejohn to show actual prejudice would leave him with no remedy if his right to a public trial was violated. If the trial court closed the courtroom to members of the public in violation of Waller, and trial counsel unreasonably waived that right, Littlejohn’s only option would be to collaterally challenge counsel’s representation within a framework that requires a showing of actual prejudice in a context that the Supreme Court has recognized is virtually impossible.
III. Conclusion
On the record before us, we are unable to resolve whether trial counsel’s waiver of Littlejohn’s right to have his friends and family in attendance constituted ineffective assistance of counsel. We therefore remand the case for an evidentiary hearing to determine whether counsel’s public trial waiver constituted sound trial strategy given the particular importance of having a defendant’s friends and family in attendance, and if not, whether the closure order satisfied the four Waller criteria. The trial court’s review of the closure order must focus on whether the decision to exclude Littlejohn’s supporters from part of the trial “had a firm factual foundation and was founded upon correct legal standards, i.e. the Waller criteria.” Tinsley, 868 A.2d at 875 (citations and internal quotation marks omitted). If it did not — if the courtroom was closed to Littlejohn’s supporters in violation of his public trial right and trial counsel’s waiver of that right constituted ineffective assistance of counsel — no further showing of prejudice is required and Littlejohn is entitled to a new trial.
For the foregoing reasons, the judgment of the Superior Court is vacated and the case is remanded for an evidentiary hearing in accordance with this opinion.
So ordered.
. The record does not indicate whether the exclusion order was enforced on the additional two days of trial. At the very least, Little-john’s supporters missed thirty to forty minutes of Nailah Farooq’s testimony.
. In his § 23-110 motion, Littlejohn also argued that his counsel had rendered ineffective assistance by failing to interview and call as a witness Jamal Young, who had been with Littlejohn at the go-go and who would have testified that Littlejohn was with him for an hour before the stabbing and therefore someone other than Littlejohn had stabbed Farooq. Young provided an unsworn statement and testified at the evidentiary hearing. The trial court did not find him to be a credible witness, a determination that we see no reason to second-guess. Robinson v. United States, 928 A.2d 717, 727 (D.C.2007). Given Young's vague and uncorroborated testimony at the hearing, Young’s failure to come forward after the crime and after Littlejohn's arrest, evidence that Young and Littlejohn were good friends, and Young’s impeachable conviction, the record does not support Littlejohn’s claim that his counsel’s failure to call Young as a witness fell below a reasonable standard of professional assistance. Kimmelman v. Morrison, 477 U.S. 365, 381, 106 S.Ct. 2574, 91 L.Ed.2d 305 (1986).
. Litdejohn’s counsel undoubtedly could have preserved her claim more artfully, but she did not acquiesce in the court’s ruling until after arguing that this court had not addressed the issue she was raising and that she had indeed raised the claim in her written motion. "[PJarties on appeal are not limited to the precise arguments they made below in support of their claims, and even if a claim was not pressed below, it properly may be addressed on appeal so long as it was passed upon.” Abdus-Price v. United States, 873 A.2d 326, 332 n. 7 (D.C.2005) (internal quotation marks omitted) (citing Yee v. City of Escondido, 503 U.S. 519, 534, 112 S.Ct. 1522, 118 L.Ed.2d 153 (1992)); see also Tindle v. United States, 778 A.2d 1077, 1082 (D.C.2001) ("[T]he Supreme Court of the United States and this court have distinguished between 'claims’ and 'arguments,' holding that although 'claims’ not presented in the trial court will be forfeited (and thus subject to the plain error review standard), parties on appeal are not limited to the precise arguments they made in the trial court.”) (internal quota*1039tion marks omitted); Bautista v. United States, 10 A.3d 154, 159 (D.C.2010) ("This court may, in its discretion, entertain an argument made for the first time on appeal.”).
. We cannot say that the courtroom closure in this case was trivial. For one thing, it is not clear whether the court’s exclusion order, which instructed Littlejohn’s supporters to leave the courtroom thirty minutes early on each day of trial, was enforced throughout the trial. At the very least, Littlejohn’s supporters were kept out of the courtroom for about thirty minutes of testimony from Farooq’s sister, a key witness implicating Littlejohn in the .murder. Moreover, the trial court excluded not just any members of the public, but those members "most likely to be interested in, and concerned about” Littlejohn’s treatment, Tinsley, 868 A.2d at 873. In United States v. Rivera, 682 F.3d 1223 (9th Cir.2012), in which the Ninth Circuit vacated a sentence because the defendant’s family was excluded from the thirty-minute sentencing proceeding, the court observed that the length of the exclusion is not dispositive; instead, there are *1040generally "two specific categories of substantial closure": where the public is excluded from a critical part of the proceeding and where the court excludes the defendant’s friend or relative. Id. at 1231 (citing Braun v. Powell, 227 F.3d 908, 917 & n. 6 (7th Cir.2000) (collecting cases)).
. Some courts have required a less stringent showing in the context of partial closures. See, e.g., Bucci v. United States, 662 F.3d 18, 23 (1st Cir.2011) (" ‘substantial’ interest, rather than a 'compelling' one, will justify partial closure”); United States v. Sherlock, 962 F.2d 1349, 1357 (9th Cir.1992); Nieto v. Sullivan, 879 F.2d 743, 753 (10th Cir.1989); Douglas v. Wainwright, 739 F.2d 531, 533 (11th Cir.1984). We believe the Supreme Court foreclosed this approach in Presley v. Georgia, 558 U.S. 209, 214, 130 S.Ct. 721, 175 L.Ed.2d 675 (2010), when it reversed a conviction because no overriding interest justified closing one stage of the criminal proceeding — the voir dire of prospective jurors. Although Bucci describes a "partial closure” as one that excludes some, but not all, members of the public, see 662 F.3d at 23, we conclude that the term applies just as readily to a closure that excludes all members of the public from a critical stage of the trial, as was the case in Presley.
. Although we have noted in the past that trial judges should not be required to "invent novel alternatives out of thin air” if the parties do not themselves propose alternatives for consideration, we have maintained that a trial judge should not be "absolved from considering ... obvious reasonable alternatives to exclusion of the public.” Tinsley, 868 A.2d at 879.
. Nor are we persuaded that there is much significance in the distinction that Waller "came in a direct appeal presenting the pure closure issue, not in a collateral attack on the conviction presenting an ineffective assistance of counsel claim stemming from the failure to object to the closure.” Purvis, 451 F.3d at 740.