<Li> United States v. Paramount Pictures, Inc., 334 U.S. 131 (1948) Practice of block booking and ownership of theater chains by film studios constituted anti-competitive and monopolistic trade practices . </Li> <Li> Youngstown Sheet & Tube Co. v. Sawyer, 343 U.S. 579 (1952) The President cannot seize private property in the absence of either specifically enumerated authority under the Constitution or statutory authority given to him or her by Congress . </Li> <Li> Reid v. Covert, 354 U.S. 1 (1957) The Constitution supersedes all treaties ratified by the Senate . </Li> <Li> Williams v. Lee, 358 U.S. 217 (1959) State courts do not have jurisdiction on Indian reservations without the authorization of Congress . </Li>

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