1. Whether 18 U.S.C. § 922(g)(3), the federal statute that prohibits firearm possession by a person who "is an unlawful user of … any controlled substance," violates the Second Amendment either facially or as applied to an individual who was under the influence of marijuana at the time of possession.

2. Whether 18 U.S.C. § 922(g)(3)'s ban on firearm possession by "an unlawful user" of a controlled substance—a term not defined in the statute—is unconstitutionally vague.

Question not identified.