Marcia Carolyn Kaptur is an American politician serving as the U.S. representative for Ohio's 9th congressional district since 1983. A member of the Democratic Party, Kaptur is the longest-serving woman in congressional history and the dean of Ohio's congressional delegation since 2009 when Representative Ralph Regula retired. Her district is located in northwestern Ohio along the southern shore of Lake Erie and includes parts of Toledo and other communities in Defiance, Erie, Fulton, Ottawa, Lucas, Sandusky, Williams, and Wood counties.