2020Final results
2020 election for Massachusetts House District 166
Massachusetts House of Representatives · Massachusetts
Jeff Roy (D) won with 94.8% of the vote, defeating Andrew M. Bissanti (R) by 91.1 points.
Jeff RoyDemocrat · winner · incumbent
94.8%19,461
Andrew M. BissantiRepublican
3.7%761
Write-ins and other votesOther party
1.4%297
20,519 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: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET