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1966 South Dakota U.S. Senate Election
South Dakota · 2 candidates
Mundt +32.6 pts · won by 73,954 votes
Karl E. MundtRepublicanWINNER66.28%
150,517 votes
Donn H. WrightDemocratic33.72%
76,563 votes
Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).