Whether the Sentencing Commission can use commentary to expand an unambiguous Guideline that applies to enhancements for prior convictions for crimes of violence to include attempts to commit one of the offenses enumerated in USSG § 4B1.2

QUESTION PRESENTED Whether the Sentencing Commission can use commentary to expand an unambiguous Guideline that applies to enhancements for prior convictions for crimes of violence to include attempts to commit one of the offenses enumerated in USSG § 4B1.2. ;