[Carry_Okie]

Treaties do not and can not, however, supersede any portion of the United States Constitution.

There are a bunch that do and on a grand scale, particularly the Convention on Nature Protection and Wildlife Preservation in the Western Hemisphere (1941).

[MarcusTulliusCicero]

Convention on Nature Protection and Wildlife Preservation in the Western Hemisphere; 56 Stat. 1354; TS 981 The Convention was signed by the United States on October 12, 1940, and ratified April 15, 1941. United States ratification documents were deposited with the Pan American Union, Washington, D.C., on April 28, 1941. Implementing legislation for the United States was achieved by enactment of Public Law 93-205, the Endangered Species Act of 1973 (16 U.S.C. 1531-1543; 87 Stat. 884). Section 8(e) of the Act directs the President to designate the agencies "which shall act on behalf of and represent the United States in all regards as required by the Convention," which was accomplished by Executive Order 11911, April 13, 1976. Congress had to pass implementing legislation in order to carry out the terms of the treaty, which it would not have had to do if the treaty superseded the Constitution. Now -it is entirely possible that the legislation that Congress passed was not Constitutionally based, but the treaty itself did not supersede the Constitution.