how many votes in congress to repeal a law
Repeal In the United States, when a bill is passed by the House and Senate and signed by the president, or Congress overrides a presidential veto, the various provisions contained within the newly enacted law are rearranged according to their policy content and cataloged in the United States Codeâ€”a compilation of the general and permanent federal laws of the United States. To repeal any element of an enacted law, Congress must pass a new law containing repeal language and the codified statute's location in the U.S. Code (including the title, chapter, part, section, paragraph and clause). In this way, Congress (and the president) must follow the same rules and procedures for passing any law. When statutes are repealed, their text is simply deleted from the Code and replaced by a note summarizing what used to be there. Once deleted, the repealed statute no longer has the force of law. All repeals of parts of the US Code are, therefore, express repeals.
Twenty-first Amendment to the United States Constitution The Twenty-first Amendment (Amendment XXI) to the United States Constitution repealed the Eighteenth Amendment to the United States Constitution, which had mandated nationwide Prohibition on alcohol on January 16, 1919. The Twenty-first Amendment was ratified on December 5, 1933.[1] It is unique among the 27 amendments of the U.S. Constitution for being the only one to repeal a prior amendment and to have been ratified by state ratifying conventions.