2020Final resultsSpecial election
2020 special election for Massachusetts House District 154
Massachusetts House of Representatives · Massachusetts
Dan Sena (D) won with 73.9% of the vote, defeating Catherine J. Clark (R) by 48.2 points.
Dan SenaDemocrat · winner
73.9%4,246
Catherine J. ClarkRepublican
25.6%1,474
5,748 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)