Katzenbach v. McClung, 379 U.S. 294 (1964), is a landmark decision by the United States Supreme Court. The Court held that Congress acted within its power under the Commerce Clause of the United States Constitution in forbidding racial discrimination in restaurants as this was a burden to interstate commerce. The ruling was a 9–0 decision in favor of the plaintiff—the United States government. It was also a test case of the Civil Rights Act of 1964. In particular, 