what is the highest federal court of the United States. who decided the case of United States v. Payner,
United States v. Payner United States v. Payner, 447 U.S. 727 (1980), is a United States Supreme Court case in which the Court reversed a district court's suppression of evidence in the criminal prosecution of an Ohio businessman charged with tax evasion. The case concerned both issues of criminal procedure and the application of the exclusionary rule derived from the Fourth Amendment. By a 6–3 margin the Court both reaffirmed its earlier rulings' holding that only the party whose Fourth Amendment protections may have been violated has standing to challenge the evidence seized in the search, and barred lower courts from exercising their supervisory power to exclude such evidence at the trial of third parties.
United States v. Lopez United States v. Alfonso D. Lopez, Jr., 514 U.S. 549 (1995) was the second United States Supreme Court case since the New Deal to set limits to Congress' power under the Commerce Clause of the United States Constitution. The Supreme Court held that the federal Gun-Free School Zones Act of 1990, which banned possession of handguns near schools, was unconstitutional because it did not have a substantial impact on interstate commerce. After the "Lopez" decision, the act was amended to specifically only apply to guns that had been moved via interstate commerce.