Whether 18 U.S.C. § 924(a) provides for criminal penalties for felons who possess firearms in interstate commerce absent proof that they knew of their felony status, or of the firearms movement in interstate commerce?

QUESTIONS PRESENTED I. Whether 18 U.S.C. § 924(a) provides for criminal penalties for felons who possess firearms in interstate commerce absent proof that they knew of their felony status, or of the firearms movement in interstate commerce? II. Whether all facts—including the fact of a prior conviction—that increase a defendant’s statutory maximum must be pleaded in the indictment and either admitted by the defendant or proven to a jury beyond a reasonable doubt? III. Whether the definition of “delivery” in the Texas controlled substances statute, which includes an offer to sell includes conduct that does not qualify as a “serious drug offense”? i