1940 Illinois U.S. Senate Special

Illinois · 2 candidates · See every 1940 U.S. Senate race

Who won the 1940 Illinois U.S. Senate Special?

C. Wayland Brooks won the 1940 Illinois U.S. Senate Special. C. Wayland Brooks received 2,045,924 popular votes (50.07%). The main challenger was James M. Slattery (49.56%).

See the full head-to-head between Brooks and Slattery

Brooks +0.5 pts · won by 20,827 votes

C. Wayland Brooks RepublicanWINNER50.07%

2,045,924 votes

James M. Slattery Democratic49.56%

2,025,097 votes

A special election fills a Senate seat that came open mid-term. 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.