Thomas Richard Harkin (born November 19, 1939) is an American lawyer, author, and politician who served as a United States senator from Iowa from 1985 to 2015. A member of the Democratic Party, he previously was the U.S. representative for Iowa's 5th congressional district from 1975 to 1985. He is the longest-serving senator to spend the entire tenure as a state's junior senator. Born in Cumming, Iowa, Harkin graduated from... see more