1940 Idaho gubernatorial election

The 1940 Idaho gubernatorial election was held on November 5. Democratic nominee Chase Clark defeated incumbent Republican C. A. Bottolfsen with 50.48% of the vote.
The next election in 1942 was a rematch, also close, with different results.

Primary elections

Primary elections were held on August 13, 1940.

Democratic primary

Candidates

Chase Clark, Idaho Falls mayor
J. W. Taylor, attorney general
James Barnes, Hansen farmer, former county commissioner

Republican primary

Candidates

C. A. Bottolfsen, Arco, incumbent governor
Thomas McDougall, Boise attorney

General election

Candidates

Chase A. Clark, Democratic
C. A. Bottolfsen, Republican