3-In United States v. Lopez (1995), the Supreme Court ruled that Congress had exceeded its constitutional authority under the Commerce Clause when it passed a law prohibiting gun possession in local school zones.
4-The Court ruled that the act exceeded the limited powers of Congress under the Constitution, rejecting the government's argument that the act was constitutional because the buying and selling of guns and associated illicit activities affect "interstate commerce," which Congress may regulate under the Commerce Clause
