The Mississippi Senator is Trent Lott, a Republican who served in the United States Senate from 1989 to 2007. He was the Senate Majority Leader from 1996 to 2001 and the Senate Minority Whip from 2003 to 2007. Lott was also a member of the House of Representatives from 1973 to 1989. He was a strong advocate for conservative causes and was known for his support of President George W. Bush's policies.