Collin Clark Peterson (born June 29, 1944) is an American accountant and politician who served as the U.S. representative for Minnesota's 7th congressional district from 1991 to 2021. A member of the Minnesota Democratic–Farmer–Labor Party, or the DFL. he was chairman of the House Committee on Agriculture from 2019 to 2021 and previously holding the office from 2007 to 2011; he had been ranking member from 2011 to 2019 and 2005 to 2007. Peterson was the most senior U.S. Representative from Minnesota and the dean of Minnesota's congressional delegation. In 2020, Peterson was defeated by Michelle Fischbach, ending his 30-year tenure in the United States House of Representatives.