Is a sentencing court limited to applying a categorical approach when determining whether a conviction for violating the Federal Racketeer Influence and Corrupt Organizations Act, 18 U.S.C. § 1962(c), constitutes a predicate crime under the career offender guideline? Or, because of the unique structure of RICO, may a sentencing court make this determination based on the facts underlying the "pattern of racketeering activity" element of a RICO conviction?

Is a sentencing court limited to applying a categorical approach when determining whether a conviction for violating the Federal Racketeer Influence and Corrupt Organizations Act, 18 U.S.C. § 1962(c), constitutes a predicate crime under the career offender guideline?