Tom Udall, American lawyer and politician, 28th New Mexico Attorney General, United States Senator from New Mexico

Thomas Stewart Udall is an American diplomat, attorney, and politician who had served as the United States Ambassador to New Zealand and Samoa. A member of the Democratic Party, he served as a United States senator for New Mexico from 2009 to 2021. Udall also served as the U.S. representative for New Mexico's 3rd congressional district from 1999 to 2009 and New Mexico attorney general from 1991 to 1999. Born in Tucson, Arizona to the Udall family, he is the son of former U.S. Representative and Secretary of the Interior Stewart Udall and the nephew of former U.S. Representative Mo Udall. His cousin is Mark Udall, who concurrently served alongside him in the senate representing the neighboring state of Colorado from 2009 until 2015.

The attorney general of New Mexico, an elected executive officer of the state, oversees the New Mexico Attorney General's Office and serves as head of the New Mexico Department of Justice.

The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the U.S. Constitution to pass or defeat federal legislation.