2010Flipped from DemocraticFinal resultsIncumbent defeated
2010 election for Massachusetts House District 159
Massachusetts House of Representatives · Massachusetts
Ryan Fattman (R) won with 52.5% of the vote, defeating Jennifer Callahan (D) by 5.1 points, a seat Democrats won last time.
Ryan FattmanRepublican · winner
52.5%9,292
Jennifer CallahanDemocrat · incumbent
47.4%8,385
17,685 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
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET