of supervised release is generally determined based on the grade of the release violation and the defendant’s underlying criminal history cate gory. See U.S.S.G. § 7B1.4(a). Where a defendant commits a Grade A release violation, as Mr. Ceasar did, he receives a higher guideline range if his underlying conviction was for a Class A felony. See id. “An offense that is not specifically classified by a letter grade in the section defining it, is classified [according to] the maximum term of imprisonment authorized.” 18 U.S.C. § 3559(a). The crime is considered a Class A felony where the maximum penalty is death or life imprisonment, and a Class B felony where the maximum term of imprisonment is 25 years or more. See § 3559(a)(1) & (2). Although Congress did not specify a m (5th Cir.1991) (<HOLDING>). Because the district court properly
holding constitutional the recidivismbased mandatory life sentence penalty created by 18 usc  3559 holding that crimes subject to a minimum sentence of 15 years under 18 usc  924e1 are properly characterized as class a felonies under 18 usc  3559 holding that 18 usc  1919 did not implicitly repeal 18 usc  1001 holding for the purposes of 18 usc  924e that being a felon in possession of a firearm is not a violent felony as defined in 18 usc  924e2b holding that a defendant cannot collaterally attack his sentence under 18 usc  3582c2