PolitiFinder

1966 Indiana U.S. Senate Election

Indiana · 4 candidates · See every 1966 U.S. Senate race

Who won the 1966 Indiana U.S. Senate Election?

Birch Bayh won the 1966 Indiana U.S. Senate Election. Birch Bayh received 1,060,456 popular votes (51.65%). The main challenger was William D. Ruckelshaus (48.15%).

See the full head-to-head between Bayh and Ruckelshaus

Bayh +3.5 pts · won by 71,885 votes
Birch BayhDemocraticWINNER51.65%
1,060,456 votes
William D. RuckelshausRepublican48.15%
988,571 votes
L. Earl MalcolmProhibition0.14%
2,844 votes
Ralph LevittSocialist Workers0.06%
1,247 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.