The 1920 United States Senate election in Wisconsin was held on November 2, 1920. Incumbent senator Irvine Lenroot, who had been elected to complete the unexpired term of Paul O. Husting, was re-elected to a full term in office.
Republican primary Candidates Irvine Lenroot, incumbent Senator since 1918 A.C. McHenry James Thompson, former La Crosse County district attorney
Results
Other primaries Democratic
Prohibition
Socialist
General election Candidates Irvine Lenroot, incumbent Senator (Republican) Clyde D. Mead (Prohibition) Paul Samuel Reinsch, diplomat and professor of political science at the University of Wisconsin (Democratic) James Thompson, former La Crosse County district attorney (La Follette Progressive) Frank J. Weber, former State Assemblyman from Milwaukee (Socialist)
Results
See also 1920 United States Senate elections
References