
    UNITED STATES of America, Plaintiff-Appellee, v. John Earl THOMAS, also known as Wino, also known as Max, Defendant-Appellant.
    No. 04-10128.
    Conference Calendar.
    United States Court of Appeals, Fifth Circuit.
    Decided June 22, 2005.
    Michael Gill, U.S. Attorney’s Office, Northern District of Texas, Dallas, TX, for Plaintiff-Appellee.
    Bonita L Gunden, Assistant Federal Public Defender, Federal Public Defender’s Office Northern District of Texas, Amarillo, TX, for Defendant-Appellant.
    Before WIENER, BENAVIDES, and DENNIS, Circuit Judges.
   PER CURIAM:

John Earl Thomas, in reliance on Blakely v. Washington, — U.S. -, 124 S.Ct. 2531, 159 L.Ed.2d 403 (2004), argues that the district court plainly erred in imposing a sentence based on facts not alleged in the indictment, not admitted by him in court, and not proved to a jury beyond a reasonable doubt. Thomas challenges on Blakely grounds the district court’s findings that he be held accountable for sentencing purposes for 612.6 grams of cocaine base and that he be held accountable for possession of a firearm.

To demonstrate plain error, Thomas has the burden of showing an error that is obvious and that affects his substantial rights. United States v. Mares, 402 F.3d 511, 520 (5th Cir.2005), petition for cert. filed (Mar. 31, 2005) (No. 04-9517). To show that the error affected his substantial rights, Thomas has the burden of demonstrating that “the sentencing judge — sentencing under an advisory scheme rather than a mandatory one — would have reached a significantly different result.” Id. at 521 (citation omitted). Thomas has not shown that the district court would have imposed a different sentence. Accordingly, we AFFIRM the judgment of the district court. 
      
       Pursuant to 5th Cir. R. 47.5, the court has determined that this opinion should not be published and is not precedent except under the limited circumstances set forth in 5th Cir. R. 47.5.4.
     