
117,488 signatures

Former US Senate - Colorado
Colorado
Mark Udall is an American politician from the Democratic Party known for serving Colorado as a U.S. Senator from 2009 to 2015. Prior to that tenure, he served as a U.S. Representative from 1999 to 2009, demonstrating a long and steady career in U.S. politics. Born in Tucson, Arizona, and educated at Williams College in Massachusetts, he is part of the prominent Udall political family that has been active in American politics for several generations. Throughout his career, Udall's political work primarily focused on environmental conservation, renewable energy, and campaign finance reform.