United States Court of Appeals
Fifth Circuit
F I L E D
IN THE UNITED STATES COURT OF APPEALS
FOR THE FIFTH CIRCUIT August 17, 2005
Charles R. Fulbruge III
Clerk
No. 04-41088
Conference Calendar
UNITED STATES OF AMERICA,
Plaintiff-Appellee,
versus
JUAN MANUEL PENA,
Defendant-Appellant.
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Appeal from the United States District Court
for the Southern District of Texas
USDC No. 5:04-CR-75-1
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Before BENAVIDES, CLEMENT, and PRADO, Circuit Judges.
PER CURIAM:*
Juan Manuel Pena appeals the 51-month sentence imposed
following his guilty-plea conviction for conspiracy to possess
with the intent to distribute more than 100 kilograms of
marijuana, in violation of 21 U.S.C. §§ 841 and 846. He argues,
for the first time on appeal, that in light of Apprendi v. New
Jersey, 530 U.S. 466 (2000), the drug-trafficking statutes under
which he was convicted are facially unconstitutional because they
treat drug type and quantity as sentencing factors rather than
*
Pursuant to 5TH CIR. R. 47.5, the court has determined that
this opinion should not be published and is not precedent except
under the limited circumstances set forth in 5TH CIR. R. 47.5.4.
No. 04-41088
-2-
elements of the offense which must be pleaded and proved beyond a
reasonable doubt. As Pena concedes, his argument is foreclosed
by United States v. Slaughter, 238 F.3d 580, 582 (5th Cir. 2000).
In a supplemental letter brief, Pena additionally argues,
also for the first time on appeal, that his sentence should be
vacated because it was imposed pursuant to a mandatory
application of the sentencing guidelines, citing United States v.
Booker, 125 S. Ct. 738 (2005). This argument is reviewed for
plain error. United States v. Valenzuela-Quevedo, 407 F.3d 728,
733 (5th Cir. 2005), petition for cert. filed (July 25, 2005)
(No. 05-5556); see also United States v. Mares, 402 F.3d 511, 520
(5th Cir. 2005), petition for cert. filed (Mar. 31, 2005) (No.
04-9517). To demonstrate plain error, Pena must show “(1) error,
(2) that is plain, and (3) that affects substantial rights.”
Mares, 402 F.3d at 520. Following Booker, a sentence imposed
under the formerly mandatory, now advisory, guidelines regime
constitutes an error that is plain. Valenzuela-Quevedo, 407 F.3d
at 733. However, Pena has not demonstrated a probability that he
would have received a lower sentence under an advisory scheme,
and he has thus failed to demonstrate that the error affected his
substantial rights. See id. at 733-34; see also Mares, 402 F.3d
at 521. Accordingly, the district court’s judgment is AFFIRMED.