John David Dingell Jr. (July 8, 1926 – February 7, 2019) was an American politician from the state of Michigan who served as a member of the United States House of Representatives from 1955 until 2015. A member of the Democratic Party, Dingell holds the record as the longest-serving member of Congress in American history. Born in Colorado Springs, Colorado, Dingell attended Georgetown University, where he earned a Bachelor of Science in chemistry in 1949 and a Juris Doctor in 1952. Dingell bega ...