Whether, to support Rehaif's knowledge-of-status element in a prosecution for unlawful possession of a firearm by a person convicted of a misdemeanor crime of domestic violence, 18 U.S.C. § 922(g)(9), the government must prove that the defendant knew that he had:

(1) been convicted of an offense that has "as an element, the use or attempted use of physical force" and thus qualifies as a misdemeanor crime of domestic violence as defined under federal law; or

(2) merely engaged in conduct that constitutes "physical force" as defined in United States v. Castleman, 572 U.S. 157, 163 (2014), whether or not the defendant knew how Castleman defines the term.

Whether the government must prove the defendant's knowledge of the specific elements of a misdemeanor crime of domestic violence in a prosecution under 18 U.S.C. § 922(g)(9)