2018Final results
2018 election for Massachusetts's 3rd District
U.S. House · Massachusetts
Lori Trahan (D) won with 62.0% of the vote, defeating Rick Green (R) by 28.5 points.
Lori TrahanDemocrat · winner
62.0%173,175
Rick GreenRepublican
33.5%93,445
Michael P. MullenIndependent
4.5%12,572
279,327 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Lori TrahanRick Green
$2.6M
Raised by the campaign
$986.1K
$2.6M
Spent by the campaign
$975.4K
$69.1K
Cash on hand
$10.7K
Other candidates' campaigns: Michael P. Mullen $20K.
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018