Election 1966 Results
Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.
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1966 US Senate election in Massachusetts
Edward Brooke (Republican) beat Endicott Peabody (Democrat) in Massachusetts in 1966, 60.7% to 38.7%, a margin of 21.9 points and 438,712 votes.
The Republican hold continued from 1960, when Leverett Saltonstall won.
Republicans led in 13 of the 14 counties as they stood then and Democrats in 1. The largest, Middlesex, cast 501,554 votes and went to the Republican by 23.0 points. The closest was Nantucket, where 671 votes separated the two parties.
Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.
Senate
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Edward Brooke won | Republican | 1,213,473 | 60.7% |
| Endicott Peabody | Democratic | 774,761 | 38.7% |
| All other candidates | 11,715 | 0.6% | |
| Total | 1,999,949 |
Every county
| County | Democrat | Republican | Others | Total | Margin |
|---|---|---|---|---|---|
| Middlesex | 191,614 38.2% | 307,079 61.2% | 2,861 | 501,554 | R+23.0 |
| Essex | 85,623 34.6% | 160,327 64.8% | 1,384 | 247,334 | R+30.2 |
| Suffolk | 129,707 55.1% | 103,342 43.9% | 2,246 | 235,295 | D+11.2 |
| Worcester | 81,392 34.9% | 150,610 64.7% | 884 | 232,886 | R+29.7 |
| Norfolk | 83,360 35.9% | 147,690 63.6% | 997 | 232,047 | R+27.7 |
| Bristol | 65,699 41.3% | 92,305 58.1% | 921 | 158,925 | R+16.7 |
| Hampden | 58,903 42.6% | 78,276 56.6% | 1,219 | 138,398 | R+14.0 |
| Plymouth | 33,848 31.3% | 73,869 68.3% | 426 | 108,143 | R+37.0 |
| Berkshire | 18,363 37.3% | 30,588 62.1% | 331 | 49,282 | R+24.8 |
| Hampshire | 13,151 34.4% | 24,856 65.1% | 191 | 38,198 | R+30.6 |
| Barnstable | 7,013 20.9% | 26,414 78.7% | 126 | 33,553 | R+57.8 |
| Franklin | 5,226 25.6% | 15,112 73.9% | 107 | 20,445 | R+48.4 |
| Dukes | 545 21.2% | 2,017 78.4% | 12 | 2,574 | R+57.2 |
| Nantucket | 317 24.1% | 988 75.1% | 10 | 1,315 | R+51.0 |
Counties as they stood in 1966; some have since been split, merged or renamed. Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.
Massachusetts Senate elections we hold
| Year | Winner | Margin |
|---|---|---|
| 2024 | Elizabeth Warren (D) | D+19.8 |
| 2020 | Ed Markey (D) | D+33.1 |
| 2018 | Elizabeth A. Warren (D) | D+24.2 |
| 2014 | Ed Markey (D) | D+23.9 |
| 2012 | Elizabeth Warren (D) | D+7.5 |
| 2008 | John Kerry (D) | D+34.9 |
| 2006 | Ted Kennedy (D) | D+38.8 |
| 2002 | John Kerry (D) | D+80.0 |
| 2000 | Ted Kennedy (D) | D+56.9 |
| 1996 | John F. Kerry (D) | D+7.5 |
| 1994 | Edward M. Kennedy (D) | D+17.1 |
| 1990 | John Kerry (D) | D+14.2 |
| 1988 | Edward M. Kennedy (D) | D+31.0 |
| 1984 | John F. Kerry (D) | D+10.1 |
| 1982 | Edward M. Kennedy (D) | D+22.6 |
| 1978 | Paul E. Tsongas (D) | D+10.2 |
| 1976 | Edward M. Kennedy (D) | D+40.3 |
| 1972 | Edward Brooke (R) | R+28.8 |
| 1970 | Ted Kennedy (D) | D+25.2 |
| 1966 | Edward Brooke (R) | R+21.9 |
| 1964 | Ted Kennedy (D) | D+48.8 |
| 1960 | Leverett Saltonstall (R) | R+12.7 |
| 1958 | John F. Kennedy (D) | D+47.0 |
| 1954 | Leverett Saltonstall (R) | R+1.5 |
| 1952 | John F. Kennedy (D) | D+3.0 |
| 1948 | Leverett Saltonstall (R) | R+6.5 |
| 1946 | Henry Cabot Lodge Jr. (R) | R+19.8 |
| 1942 | Henry Cabot Lodge Jr. (R) | R+5.8 |
| 1940 | David I. Walsh (D) | D+12.8 |
| 1936 | Henry Cabot Lodge Jr. (R) | R+7.5 |
| 1934 | David I. Walsh (D) | D+22.0 |
| 1930 | Marcus A. Coolidge (D) | D+9.3 |
| 1928 | David I. Walsh (D) | D+8.2 |
| 1924 | Frederick H. Gillett (R) | R+1.7 |
| 1922 | Henry Cabot Lodge (R) | R+0.8 |
| 1918 | David I. Walsh (D) | D+4.6 |
| 1916 | Henry Cabot Lodge (R) | R+6.4 |