The 1964 United States Senate election in Minnesota took place on November 3, 1964. Incumbent Democratic U.S. Senator Eugene McCarthy defeated Republican challenger Wheelock Whitney Jr., to win a second term.
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 County results McCarthy: 40–50% 50–60% 60–70% 70–80% Whitney: 50–60% | |||||||||||||||||
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Democratic–Farmer–Labor primary
editCandidates
editDeclared
edit- Eugene J. McCarthy, Incumbent U.S. Senator since 1959
- Joseph Nowak
- R. H. Underdahl
Results
edit| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic (DFL) | Eugene J. McCarthy (Incumbent) | 245,068 | 90.47% | |
| Democratic (DFL) | R. H. Underdahl | 14,562 | 5.38% | |
| Democratic (DFL) | Joseph Nowak | 11,267 | 4.16% | |
| Total votes | 270,897 | 100.00% | ||
Republican primary
editCandidates
editDeclared
edit- Wheelock Whitney, Jr., Investment banker and member of the board of directors of the Minnesota Twins
Results
edit| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Wheelock Whitney, Jr. | 161,363 | 100.00% | |
| Total votes | 161,363 | 100.00% | ||
General election
editResults
edit| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic (DFL) | Eugene J. McCarthy (Incumbent) | 931,363 | 60.34% | |
| Republican | Wheelock Whitney, Jr. | 605,933 | 39.26% | |
| Industrial Government | William Braatz | 3,947 | 0.26% | |
| Socialist Workers | Everett E. Luoma | 2,357 | 0.15% | |
| Total votes | 1,543,600 | 100.00% | ||
| Majority | 325,430 | 21.08% | ||
| Democratic (DFL) hold | ||||