the prior Fifth Circuit decisions cited, we find no Sixth Amendment violation. 2. Eighth Amendment Martin also challenges his mandatory life sentence on the basis that it violates the Eighth Amendment’s proportionality requirement. In Harmelin v. Michigan, the Supreme Court permitted to stand under the Eighth Amendment a mandatory life sentence without the possibility of parole for one drug conviction. 501 U.S. 957, 111 S.Ct. 2680, 115 L.Ed.2d 836 (1991). “Severe, mandatory penalties may be cruel, but they are not unusual in the constitutional sense, having been employed in various forms throughout our Nation’s history.” Id. at 994-95, 111 S.Ct. 2680. The federal “three strikes” law, 18 U.S.C. § 3559(c), is constitutional. Cf. United States v. Rasco, 123 F.3d 222, 226-27 (5th Cir.1997) (<HOLDING>). We are bound by our precedent and affirm the
holding that the ex post facto clause  has no application to deportation recognizing separation of powers doctrine holding that district court did not violate ex post facto clause in applying remedial holding of booker at sentencing holding that 18 usc  3559c did not violate separation of powers doctrine or ex post facto clause holding that revocation of medical license does not violate the ex post facto clause