Governor: Democratic primary
May 19, 2026
Governor: Republican primary
May 19, 2026
Governor: Libertarian primary
May 19, 2026
U.S. Senate: Democratic primary
May 19, 2026
U.S. Senate: Republican primary
May 19, 2026
U.S. Senate: Libertarian primary
May 19, 2026
U.S. House, District 1: Democratic primary
May 19, 2026
U.S. House, District 1: Republican primary
May 19, 2026
U.S. House, District 2: Democratic primary
May 19, 2026
U.S. House, District 2: Republican primary
May 19, 2026
U.S. House, District 2: Libertarian primary
May 19, 2026
Source: Ballotpedia and the Idaho Secretary of State, updated October 14, 2026.