Johnny Mojica appeals the sentence imposed following his resentencing for his jury trial conviction for possession with intent to distribute an amount of more than five kilograms of cocaine. Mojica was resentenced to a term of imprisonment of 151 months, to be followed by a five-year term of supervised release.

Mojica argues that the district court violated his rights recognized in United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005), by determining the drug quantity attributable to him by a preponderance of the evidence. He contends the jury should have made this determination by proof beyond a reasonable doubt. He argues that the district court’s consideration of drug quantity rendered his sentence unreasonable under 18 U.S.C. § 3553.

The Government has filed a motion to dismiss or summarily affirm the appeal or, alternatively, for an extension of time to file its brief.

Mojica’s arguments are without merit. By rendering the Sentencing Guidelines advisory only, Booker eliminated the Sixth Amendment concerns that prohibited a sentencing judge from finding all facts rel *326 evant to sentencing. United States v. Mares, 402 F.3d 511, 519 (5th Cir.), cert. denied, — U.S. -, 126 S.Ct. 43, 163 L.Ed.2d 76 (2005). Post-Booker, “[t]he sentencing judge is entitled to find by a preponderance of the evidence all the facts relevant to the determination of a Guideline sentencing range and all facts relevant to the determination of a non-Guidelines sentence.” Id.; United States v. Johnson, 445 F.3d 793, 798 (5th Cir.), cert. denied, — U.S. -, 126 S.Ct. 2884, 165 L.Ed.2d 908 (2006).

Further, Mojica cannot complain about the district court’s determination of drug quantity because he did not raise that issue in his first appeal, and, thus, its consideration is barred by the law of the case doctrine. United States v. Marmolejo, 139 F.3d 528, 531 (5th Cir. 1998); United States v. Matthews, 312 F.3d 652, 657 (5th Cir. 2002).

Mojica has not shown that his sentence is unreasonable.

The motion of the Government for summary affirmance is GRANTED, its request for dismissal or an extension of time to file its brief is DENIED.

AFFIRMED.