Whether it is inconsistent with Welch v. United States, 136 S. Ct. 1257 (2016), for a court to require a prisoner who files a second or successive motion under 28 U.S.C. § 2255 to show that any reliance on the ACCA's constitutionally infirm residual clause adversely affected his sentence by affecting a determination under the enumerated-offenses clause, or else suffer the dismissal of his petition for lack of jurisdiction.

Whether petitioner's 240-month sentence under the Armed Career Criminal Act (ACCA) must be vacated because it is unclear whether he was sentenced under the unconstitutionally vague residual clause