1918 Idaho U.S. Senate Election

Idaho · 2 candidates · See every 1918 U.S. Senate race

Who won the 1918 Idaho U.S. Senate Election?

William E. Borah won the 1918 Idaho U.S. Senate Election. William E. Borah received 63,587 popular votes (67.21%). The main challenger was Frank L. Moore (32.79%).

See the full head-to-head between Borah and Moore

Borah +34.4 pts · won by 32,569 votes

William E. Borah RepublicanWINNER67.21%

63,587 votes

Frank L. Moore Democratic32.79%

31,018 votes

Popular-vote totals for this U.S. Senate election come from the Constituency-Level Elections Archive (CLEA) and the official public record.

Data last verified July 28, 2026.