1964 United States Senate election in Missouri
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 County results Symington: 50–60% 60–70% 70–80% 80–90% Bradshaw: 50–60% 60–70% | |||||||||||||||||
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The 1964 United States Senate election in Missouri took place on November 3, 1964. Incumbent Democratic U.S. Senator Stuart Symington was re-elected to a third term in office over Republican Jean Paul Bradshaw.
Democratic primary
Candidates
- Stuart Symington, incumbent Senator since 1953
- William McKinley Thomas, perennial candidate
- Wilford G. Winholtz
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Stuart Symington (incumbent) | 563,313 | 91.99% | |
| Democratic | William McKinley Thomas | 35,509 | 5.80% | |
| Democratic | Wilford G. Winholtz | 13,550 | 2.21% | |
| Total votes | 612,372 | 100.00% | ||
Republican primary
Candidates
- Jean Paul Bradshaw, nominee for Governor in 1944
- Morris Duncan
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Jean Paul Bradshaw | 164,048 | 78.19% | |
| Republican | Morris Duncan | 46,030 | 21.81% | |
| Total votes | 211,078 | 100.00% | ||
General election
Results
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Stuart Symington (incumbent) | 1,186,666 | 66.55% |  0.10 | |
| Republican | Jean Paul Bradshaw | 596,377 | 33.45% |  0.10 | |
| Turnout | 1,783,043 | 100.00% | |||
| Democratic hold | |||||
