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Kinsella v. Krueger, 351 U.S. 470 (1956), was a landmark United States Supreme Court case in which the Court ruled that the Constitution supersedes international treaties ratified by the United States Senate. According to the decision, the Court recognized the supremacy of the Constitution over a treaty, although the case itself was with regard to an executive agreement, not a "treaty" in the U.S. legal sense, and the agreement itself has never been ruled unconstitutional.