2020Flipped from RepublicanFinal resultsSpecial election
2020 special election for Massachusetts Senate District 5
Massachusetts State Senate · Massachusetts
John Velis (D) won with 64.2% of the vote, defeating John Francis Cain (R) by 28.4 points, flipping a seat Republicans held.
John VelisDemocrat · winner
64.2%10,089
John Francis CainRepublican
35.8%5,620
15,719 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)