PolitiFinder

1930 Illinois U.S. Senate Election

Illinois · 9 candidates · See every 1930 U.S. Senate race

Who won the 1930 Illinois U.S. Senate Election?

J. Hamilton Lewis won the 1930 Illinois U.S. Senate Election. J. Hamilton Lewis received 1,432,216 popular votes (64.02%). The main challenger was Ruth H. McCormick (30.73%).

See the full head-to-head between Lewis and McCormick

Lewis +33.3 pts · won by 744,747 votes
J. Hamilton LewisDemocraticWINNER64.02%
1,432,216 votes
Ruth H. McCormickRepublican30.73%
687,469 votes
Lottie H. O'NeillRepublican4.45%
99,485 votes
George KoopSocialist0.5%
11,192 votes
Freeman ThompsonCommunist0.14%
3,118 votes
Louis WarnerPeace & Prosperity0.05%
1,078 votes
Ernest StoutAmerican National0.05%
1,060 votes
Frank L. SmithAnti League World Court & Anti Foreign Entanglements0.03%
763 votes
James J. McGrathLiberty0.03%
723 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.