Morales appeals his conviction on a multi-count indictment for drug offenses and the 192-month sentence imposed by the district court on the grounds that the court unconstitutionally enhanced his sentence on the basis of facts neither pleaded to nor proved in violation of United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005). For the following reasons, we affirm the conviction but remand for the limited purpose of consideration by the district court of whether it will impose a different sentence under the now-advisory sentencing guidelines:

1. Because the district court applied a sentence enhancement for a judge-determined leadership role under a mandatory guidelines regime, Booker error occurred. United States v. Akpan, 407 F.3d 360, 377 (5th Cir. 2005).

2. Because Morales preserved the Booker error, we review the sentence imposed by the district court for harmless error. Id. at 376. Under harmless error Booker review, the Government bears the burden of demonstrating that the error was harmless by demonstrating beyond a reasonable doubt that the district court would not have sentenced Morales differently had it acted under an advisory Guidelines regime. Id. at 377.

3. While the 240-month statutory minimum for Morales’s crime exceeds the upper limits of both the enhanced guideline range (168-210 months) and the unenhanced guideline range (135-168 months), we cannot conclude that the district court’s failure to apply the correct range was harmless. Under 18 U.S.C. § 3553(e), the district court was authorized to depart downwardly from the statutory minimum and was moved to do so by the Government, pursuant to U.S. Sentencing Guidelines Manual § 5K1.1 The court selected a sentence from the middle of the 168 to 210 month range (48 months below the statutory minimum), rather than the 168-month *341 sentence at the low end of that range that was recommended by the Government (72 months below the statutory minimum). Had the unenhanced range of 135 to 168 months been the benchmark, it is possible both that the Government would have recommended the low end of that range and that the district court, in compromise, might have selected a mid-range number between 135 and 168 months.

4. We leave to the discretion of the district court whether to resentence on remand. See Akpan, 407 F.3d at 377 n. 62. We clarify that, post- Booker, a sentencing judge remains entitled to find by a preponderance of the evidence all facts relevant to the determination of a Guideline sentencing range and all facts relevant to the determination of a non-Guidelines sentence. United States v. Mares, 402 F.3d 511, 519 (5th Cir. 2005). The Booker error here lay in such judicial fact finding under a mandatory guidelines scheme. Id.

5. The Booker error in this case pertains only to the sentence imposed. Morales has raised no grounds on which his conviction may be overturned.

AFFIRMED AND REMANDED.