<Li> Missouri v. Holland, 252 U.S. 416 (1920) Treaties made by the federal government are supreme over any concerns brought by the states about such treaties interfering with any states' rights derived from the Tenth Amendment . </Li> <Li> United States v. Wheeler, 254 U.S. 281 (1920) The Constitution grants to the states the power to prosecute individuals for wrongful interference with the right to travel . </Li> <Li> J.W. Hampton, Jr. & Co. v. United States, 276 U.S. 394 (1928) The Separation of Powers can be side - stepped if Congress provides an "intelligible principle" to guide the executive branch . </Li> <Li> National Labor Relations Board v. Jones & Laughlin Steel Corporation, 301 U.S. 1 (1937) The National Labor Relations Act and, by extension, the National Labor Relations Board are constitutional because the Commerce Clause applies to labor relations . Therefore, the NLRB has the right to sanction companies that fire or discriminate against workers for belonging to a union . Also, a local commercial activity that is considered in isolation may still constitute interstate commerce if that activity has a "close and substantial relationship" to interstate commerce . </Li>

Who has jurisdiction in state vs state cases