# 1970 United States Senate election in Maryland

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Question P :
Government :
vte :
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.
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, 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

1970 Democratic U.S. Senate primary :
| Party | 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 | Total votes | 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

1970 Republican U.S. Senate primary :
| Party | 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 | Total votes | Total votes | 119,400 | 100.00% |

## Results

1970 U.S. Senate election in Maryland :
| Party | 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 | Total votes | Total votes | 956,370 | 100.00% |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

### Results by county

| County | J. Glenn Beall Republican | J. Glenn Beall Republican | Joseph Tydings Democratic | Joseph Tydings Democratic | Harvey Wilder American | Harvey Wilder American | Margin | Margin | Total Votes Cast |
| County | # | % | # | % | # | % | # | % | 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 |

#### Counties that flipped from Democratic to Republican

* Anne Arundel
* Baltimore (County)
* Calvert
* Caroline
* Cecil
* Charles
* Frederick
* Harford
* Howard
* Kent
* Queen Anne's
* St. Mary's
* Talbot
* Washington
* Wicomico