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1934 Wisconsin U.S. Senate Election

Wisconsin · 6 candidates · See every 1934 U.S. Senate race

Who won the 1934 Wisconsin U.S. Senate Election?

Robert M. Lafollette Jr. won the 1934 Wisconsin U.S. Senate Election. Robert M. Lafollette Jr. received 440,513 popular votes (47.78%). The main challenger was John M. Callahan (24.24%).

See the full head-to-head between Jr. and Callahan

Jr. +23.5 pts · won by 217,075 votes
Robert M. Lafollette Jr.ProgressiveWINNER47.78%
440,513 votes
John M. CallahanDemocratic24.24%
223,438 votes
John B. ChappieRepublican22.84%
210,569 votes
James P. SheehanSocialist4.82%
44,453 votes
Fern DobbinsIndependent0.23%
2,127 votes
Theodore LeeIndependent0.09%
826 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.