Did the Ninth Circuit's disposition of Petitioner's claim under § 4B1.1(a) of the United States Sentencing Guidelines conflict with a rule that at least four other federal courts of appeals have promulgated, holding contrarily that state law — not federal — governs whether a state conviction is a "controlled substance offense," to determine whether a defendant is a career offender under Guidelines?

Whether federal law or state law governs what constitutes a 'controlled substance offense' under U.S.S.G. § 4B1.1(a)