Congressman John Dingell Of Michigan Becames Longest-Serving Member Of Congress In History

57 Years and 176 days.. John Dingell of Michigan has set the new record as longest serving member in the history of the United States Congress. He was elected in 1955. In my opinion no one should serve that long. Before Dingell was elected his father held the same seat in Congress for over 2 decades. Dingell beats the record of Robert KKK Byrd former Congressman and Senator from West Virginia.