(1)
Whether, where the record is unclear, a 28 U.S.C. § 2255 petitioner residual clause to determine that his prior offenses were violent felonies, before he is entitled to relief under Johnson v. United States, 135 S. Ct. 2551 (2015).

(2)
Whether a district court may rely on current law to evaluate whether a sentencing judge could have relied on the ACCA's elements clause to determine that a defendant's prior convictions qualified as violent felonies.

Whether a 28 U.S.C. § 2255 petitioner must affirmatively prove the sentencing court relied on the residual clause