1918 United States Senate election in Idaho

none the simultaneous Class III special election to complete James H. Brady's unexpired term held in parallel 1918 United States Senate special election in Idaho 1918 United States Senate election in Idaho Idaho 1907 presidential no 1913 United States Senate election in Idaho 1913 1924 United States Senate election in Idaho 1924 November 5, 1918 x150px File:William Edgar Borah cph.3b19589.jpg William Borah Republican Party (United States) 63,587 67.21% Frank L. Moore Democratic Party (United States) 31,018 32.79% 180px 1918 United States Senate election in Idaho results map by county.svg County resultsBorah: #e27f7f 50–60% #d75d5d 60–70% #d72f30 70–80%Moore: #7996e2 50–60% U.S. Senator William Borah Republican Party (United States) William Borah Republican Party (United States) The 1918 United States Senate election in Idaho took place on November 5, 1918. Incumbent Republican Senator William Borah won re-election to a third term, defeating Frank L. Moore. This is the first election to this Senate seat that used the popular vote, as it was the first election to this seat after the passage of the 17th Amendment. Primary elections Primary elections were held on September 3, 1918.The Weiser Signal-American · Thu, Sep 05, 1918 · Page 1 · (Weiser, Idaho) https://www.newspapers.com/image/1276153204/?search-id=4cbe366b-fb26-4b4d-9d3b-39abcfec9e9c&search-rank=82 July 30, 2026 However, both candidates for Senate were unopposed for the nomination.Shoshone News-Press · Wed, Sep 04, 1918 · Page 1 · (Kellogg, Idaho) https://www.newspapers.com/image/1112080721/?search-id=4cbe366b-fb26-4b4d-9d3b-39abcfec9e9c&search-rank=234 July 30, 2026Our Campaigns - ID US Senate Race - Nov 05, 1918 https://www.ourcampaigns.com/RaceDetail.html?RaceID=49597 dead https://web.archive.org/web/20250829222809/https://www.ourcampaigns.com/RaceDetail.html?RaceID=49597 August 29, 2025 July 28, 2026 Democratic primary Candidates Frank L. Moore Results Democratic primary resultsShoshone News-Press · Sun, Sep 22, 1918 · Page 1 · (Kellogg, Idaho) https://www.newspapers.com/image/1112087404/?search-id=4cbe366b-fb26-4b4d-9d3b-39abcfec9e9c&search-rank=138 July 30, 2026 Frank L. Moore Democratic Party (United States) 18,905 100.00 18,905 Republican primary Candidates William Borah, incumbent U.S. Senator Results Republican primary results William Borah (incumbent) Republican Party (United States) 26,910 100.00 26,910 General election Results 1918 United States Senate election in Idaho Republican Party (US) William Borah (incumbent) 63,587 67.21 Democratic Party (US) Frank L. Moore 31,018 32.79 32,569 34.42 94,605 Republican Party (US) See also 1918 United States Senate elections References 1918 Idaho United States Senate