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 County results Kem: 50–60% 60–70% 70–80% 80–90% Briggs: 50–60% 60–70% 70–80% 80–90% | |||||||||||||||||
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The1946 United States Senate election in Missouri was held on November 5, 1946.
Incumbent Democratic SenatorFrank P. Briggs, who was appointed to fill the vacancy left by PresidentHarry S. Truman, ran for election to a full term in office, but was defeated by RepublicanJames P. Kem.
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Frank P. Briggs (incumbent) | 205,732 | 70.43% | |
| Democratic | Marvin Casteel | 49,101 | 16.81% | |
| Democratic | Robert I. Young | 30,233 | 10.35% | |
| Democratic | James Patrick Quinn | 7,026 | 2.41% | |
| Total votes | 292,092 | 100.00% | ||
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | James P. Kem | 118,227 | 54.60% | |
| Republican | William McKinley Thomas | 31,866 | 14.72% | |
| Republican | William P. Elmer | 28,863 | 13.33% | |
| Republican | Ray Mabee | 21,104 | 9.75% | |
| Republican | Herman G. Grosby | 16,463 | 7.60% | |
| Total votes | 216,523 | 100.00% | ||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | James P. Kem | 572,556 | 52.71% |  3.98 | |
| Democratic | Frank P. Briggs (incumbent) | 511,544 | 47.09% |  4.08 | |
| Prohibition | F. H. Jackson | 979 | 0.09% | N/A | |
| Socialist | W. F. Rinck | 887 | 0.08% | 0.01 | |
| Socialist Labor | Theodore Baeff | 275 | 0.03% | 0.02 | |
| Total votes | 1,086,241 | 100.00% | |||
