Massachusetts State Senate seat · former district
Massachusetts Senate District 23
5 elections since 2012: Democrats won 5, Republicans 0.
2020 election
Nov 3, 2020- Jason Lewis (D) · won · incumbent98.0%
- Write-ins and other votes (OTH)2.0%
Unopposed.
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
Every election for this seat
5 races since 2012.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| 2020 | Jason Lewis (D) | — | Unopposed |
| 2018 | Jason Lewis (D) | Erin K. Calvobacci (R) | 34.0 |
| 2016 | Jason Lewis (D) | Vincent Lawrencedixon (R) | 38.1 |
| 2014 | Jason Lewis (D) | Monica C. Medeiros (R) | 13.7 |
| 2012 | Katherine Clark (D) | — | Unopposed |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)