PolitiFinder

1920 Wisconsin U.S. Senate Election

Wisconsin · 5 candidates · See every 1920 U.S. Senate race

Who won the 1920 Wisconsin U.S. Senate Election?

Irvine L. Lenroot won the 1920 Wisconsin U.S. Senate Election. Irvine L. Lenroot received 281,576 popular votes (41.58%). The main challenger was James Thompson (34.71%).

See the full head-to-head between Lenroot and Thompson

Lenroot +6.9 pts · won by 46,547 votes
Irvine L. LenrootRepublicanWINNER41.58%
281,576 votes
James ThompsonIndependent34.71%
235,029 votes
Paul S. ReinschDemocratic13.18%
89,265 votes
Frank J. WeberSocialist9.77%
66,172 votes
Clyde D. MeadProhibition0.75%
5,107 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.