1920 Illinois U.S. Senate Election

Illinois · 7 candidates · See every 1920 U.S. Senate race

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

William B. McKinley won the 1920 Illinois U.S. Senate Election. William B. McKinley received 1,381,384 popular votes (66.83%). The main challenger was Peter A. Waller (26.82%).

See the full head-to-head between McKinley and Waller

McKinley +40.0 pts · won by 827,012 votes

William B. McKinley RepublicanWINNER66.83%

1,381,384 votes

Peter A. Waller Democratic26.82%

554,372 votes

Gustave Fraenckel VSocialist3.22%

66,463 votes

John FitzpatrickFarmer-Labor2.46%

50,749 votes

Frank B. VennumProhibition0.49%

10,186 votes

Joseph B. MoodySocialist Labor0.15%

3,107 votes

George D. CarringtonSingle Tax0.04%

784 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.