2010Flipped from RepublicanFinal results
2010 election for Massachusetts State Senate: Middlesex–Essex
Massachusetts State Senate · Massachusetts
Katherine Clark (D) won with 52.3% of the vote, defeating Craig Spadafora (R) by 4.6 points, flipping a seat Republicans held.
Katherine ClarkDemocrat · winner
52.3%30,492
Craig SpadaforaRepublican
47.6%27,790
58,340 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2010
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)