Warren Magnuson represented Washington in the U.S. Senate from 1944-1981. He previously served in the U.S. House of Representatives, as Prosecuting Attorney of King County, and in the Washington State House of Representatives. He identified as a Democrat. He died in 1989.
1972
–Endorsed Henry Jackson (D) for President (lost primary)
1980
–Endorsed Jimmy Carter (D) for President (lost general election)
The Endorsement Project 