The 1968 United States Senate election in Washington was held on November 5, 1968. Incumbent Democratic U.S. Senator Warren Magnuson won a fifth term in office, defeating Republican State Senator Jack Metcalf.
Blanket primary
The blanket primary was held on September 17, 1968.
Candidates
Democratic
Arthur C. DeWitt, unsuccessful candidate for Democratic nomination for U.S. Senate in 1964
Congressional Elections, 1946-1996. Washington, D.C.: Congressional Quarterly Inc. 1998. ISBN 1-56802-248-4.
Scammon, Richard M., ed. (1956). America Votes 8: a handbook of contemporary American election statistics, 1968. Washington, D.C.: Governmental Affairs Institute (published 1970).