Elections / 2018 · Senate · MA
The Democratic candidate won Massachusetts's Senate seat D+24.2.
Massachusetts, 2018. Candidate results and statewide totals below.
Massachusetts — 2018 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
1,633,371
60.3%
Republican (R)
979,210
36.2%
All others
94,509
3.5%
Margin
D+24.2
Candidates
Statewide candidate totals — MIT Election Data + Science Lab, 2018 Senate returns.
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Elizabeth A. Warren | DDemocrat | 1,633,371 | 60.3% |
| Geoff Diehl | RRepublican | 979,210 | 36.2% |
| Shiva Ayyadurai | OUnenrolled | 91,710 | 3.4% |
| Others | OOther | 2,799 | 0.1% |
2018 presidential election
Massachusetts, 2018
DemocraticD+24.2
How it voted
Share of the 2018 vote
| Democratic ✓Democratic | 60.4% | 1,633,371 |
|---|---|---|
| RepublicanRepublican | 36.2% | 979,210 |
| OtherAll other candidates | 3.4% | 91,710 |
D+60R+60
14 counties, each filled by 2018 D-vs-R margin. Hover any county for its result.
Massachusetts's Senate margins
Every contest in our store, 1976–2024
| Year | Margin (D minus R) |
|---|---|
| 1976 | +40.3% |
| 1978 | +10.2% |
| 1982 | +22.6% |
| 1984 | +10.1% |
| 1988 | +31.0% |
| 1990 | +13.6% |
| 1994 | +17.1% |
| 1996 | +7.5% |
| 2000 | +59.8% |
| 2002 | +81.0% |
| 2006 | +38.8% |
| 2008 | +34.9% |
| 2012 | +7.5% |
| 2014 | +23.9% |
| 2018 | +24.2% |
| 2020 | +33.2% |
| 2024 | +19.8% |