2020Final results

2020 election for Massachusetts Senate District 40

Massachusetts State Senate · Massachusetts

Julian Cyr (D) won with 98.6% of the vote, defeating Leah Christine Mercurio (Oth) by 98.3 points.

Julian CyrDemocrat · winner · incumbent
98.6%89,721
Write-ins and other votesOther party
1.2%1,082
0.3%235
91,038 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

EvenD+25.32014D+13.92016D+24.22018

Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET