National Association for Gun Rights v. City of Naperville, Illinois

(1) Whether the state of Illinois"s ban of certain handguns is constitutional in light of the holding in District of Columbia v. Heller that handgun bans are categorically unconstitutional; (2) whether the "in common use" test announced in Heller is hopelessly circular and therefore unworkable; and (3) whether the government can ban the sale, purchase, and possession of certain semi-automatic firearms and firearm magazines that are possessed by millions of law-abiding Americans for lawful purposes when there is no analogous Founding-era regulation.