The United States Senate election in California of 1940 was held on November 5, 1940. Incumbent
Republican Senator
Hiram Johnson was re-elected to his fifth term in office, though he would die in office in 1945.
By
cross-filing and winning the Democratic and Progressive primaries, Johnson eliminated his strongest competition and handily won the general election with only nominal opposition from the Prohibition Party.
Primaries
Primaries were held on August 27.
Republican primary
Candidates
John Anson Ford, member of the Los Angeles County Board of Supervisors for District 3 (cross-filing)