Deborah Ann Stabenow is an American politician serving as the senior United States senator from Michigan, a seat she has held since 2001. A member of the Democratic Party, she became the state's first female U.S. senator after defeating Republican incumbent Spencer Abraham in the 2000 election. Before her election to the Senate, she was a member of the U.S. House of Representatives, representing Michigan's 8th congressional district from 1997 to 2001. Previously she served on the Ingham County Board of Commissioners and in the Michigan State Legislature.