1970 United States Senate election in Maryland
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The 1970 United States Senate election in Maryland took place on November 3, 1970. Incumbent Democratic U.S. Senator Joseph Tydings ran for re-election to a second term, but was narrowly defeated by Republican U.S. Representative J. Glenn Beall Jr.
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November 3, 1970
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 County results Beall: 50–60% 60–70% 70–80% Tydings: 50–60% 60–70% | |||||||||||||||||
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Tydings had defeated Beall's father, Senator James Glenn Beall six years earlier. Tydings's own adoptive father Millard had served as senator as well as Beall Sr., making this a rare dynastic election between the sons of former senators.
As of 2024[update], this was the last time a Republican won the Class 1 Senate seat in Maryland.
Democratic primary
Candidates
- Walter Gilchrist Finch, Baltimore patent lawyer
- George P. Mahoney, nominee for Governor in 1966
- Joseph Tydings, incumbent Senator
- Charles D. White
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Joseph Tydings (incumbent) | 242,874 | 52.68% | |
| Democratic | George P. Mahoney | 173,157 | 37.56% | |
| Democratic | Walter Gilchrist Finch | 33,361 | 7.24% | |
| Democratic | Charles D. White | 11,628 | 2.52% | |
| Total votes | 461,020 | 100.00% | ||
Republican primary
Candidates
- J. Glenn Beall Jr., U.S. Representative from Frostburg and son of former Senator J. Glenn Beall Sr.
- Wainwright Dawson
- Harry L. Simms
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | J. Glenn Beall Jr. | 99,687 | 83.49% | |
| Republican | Harry L. Simms | 9,927 | 8.31% | |
| Republican | Wainwright Dawson | 9,786 | 8.20% | |
| Total votes | 119,400 | 100.00% | ||
Results
| Party | Candidate | Votes | % | ±% | ||
|---|---|---|---|---|---|---|
| Republican | J. Glenn Beall Jr. | 484,960 | 50.71% |  13.49 | ||
| Democratic | Joseph Tydings (incumbent) | 460,422 | 48.14% |  14.64 | ||
| American | Harvey Wilder | 10,988 | 1.15% | N/A | ||
| Total votes | 956,370 | 100.00% | ||||
| Republican gain from Democratic | ||||||
Results by county
| County | J. Glenn Beall
Republican |
Joseph Tydings
Democratic |
Harvey Wilder
American |
Margin | Total
Votes Cast | ||||
|---|---|---|---|---|---|---|---|---|---|
| # | % | # | % | # | % | # | % | ||
| Allegany | 16432 | 64.96% | 8425 | 33.31% | 437 | 1.73% | 8007 | 31.66% | 25294 |
| Anne Arundel | 39649 | 60.54% | 24986 | 38.15% | 857 | 1.31% | 14663 | 22.39% | 65492 |
| Baltimore | 101631 | 57.17% | 74479 | 41.89% | 1668 | 0.94% | 27152 | 15.27% | 177778 |
| Baltimore City | 66552 | 33.47% | 128392 | 64.58% | 3876 | 1.95% | -61840 | -31.10% | 198820 |
| Calvert | 2854 | 56.68% | 2141 | 42.52% | 40 | 0.79% | 713 | 14.16% | 5035 |
| Caroline | 3034 | 70.79% | 1227 | 28.63% | 25 | 0.58% | 1807 | 42.16% | 4286 |
| Carroll | 12015 | 75.18% | 3804 | 23.80% | 163 | 1.02% | 8211 | 51.38% | 15982 |
| Cecil | 7527 | 63.67% | 4184 | 35.39% | 111 | 0.94% | 3343 | 28.28% | 11822 |
| Charles | 5828 | 58.50% | 4062 | 40.77% | 73 | 0.73% | 1766 | 17.73% | 9963 |
| Dorchester | 5119 | 69.81% | 2108 | 28.75% | 106 | 1.45% | 3011 | 41.06% | 7333 |
| Frederick | 14746 | 65.85% | 7375 | 32.93% | 272 | 1.21% | 7371 | 32.92% | 22393 |
| Garrett | 4701 | 78.93% | 1182 | 19.85% | 73 | 1.23% | 3519 | 59.08% | 5956 |
| Harford | 15405 | 60.27% | 9940 | 38.89% | 213 | 0.83% | 5465 | 21.38% | 25558 |
| Howard | 10097 | 61.95% | 6061 | 37.19% | 141 | 0.87% | 4036 | 24.76% | 16299 |
| Kent | 3502 | 65.37% | 1818 | 33.94% | 37 | 0.69% | 1684 | 31.44% | 5357 |
| Montgomery | 68020 | 43.08% | 88952 | 56.33% | 933 | 0.59% | -20932 | -13.26% | 157905 |
| Prince George's | 59385 | 46.01% | 68356 | 52.96% | 1327 | 1.03% | -8971 | -6.95% | 129068 |
| Queen Anne's | 3073 | 63.30% | 1753 | 36.11% | 29 | 0.60% | 1320 | 27.19% | 4855 |
| St. Mary's | 4298 | 54.38% | 3555 | 44.98% | 50 | 0.63% | 743 | 9.40% | 7903 |
| Somerset | 3995 | 68.37% | 1805 | 30.89% | 43 | 0.74% | 2190 | 37.48% | 5843 |
| Talbot | 4852 | 69.05% | 2143 | 30.50% | 32 | 0.46% | 2709 | 38.55% | 7027 |
| Washington | 19088 | 67.85% | 8611 | 30.61% | 435 | 1.55% | 10477 | 37.24% | 28134 |
| Wicomico | 9305 | 69.99% | 3883 | 29.21% | 106 | 0.80% | 5422 | 40.79% | 13294 |
| Worcester | 3852 | 75.93% | 1180 | 23.26% | 41 | 0.81% | 2672 | 52.67% | 5073 |
| Total | 484960 | 50.70% | 460422 | 48.14% | 11088 | 1.16% | 24538 | 2.57% | 956470 |