Raymond Jon Tester (born August 21, 1956) is an American politician and farmer who served from 2007 to 2025 as a United States senator from Montana and from 2005 to 2007 as president of the Montana Senate. A member of the Democratic Party, he is the most recent Democrat to hold statewide or congressional office in Montana. Tester served in the Montana Senate from 1999 to 2007. He is currently a po... show more