2010Final results
2010 election for Massachusetts's 5th District
U.S. House · Massachusetts
Niki Tsongas (D) won with 54.8% of the vote, defeating Jonathan A. Golnik (R) by 12.6 points.
Niki TsongasDemocrat · winner
54.8%122,858
Jonathan A. GolnikRepublican
42.2%94,646
Dale E. BrownOther party
2.0%4,387
Robert M. ClarkOther party
0.9%1,991
224,029 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2010
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Niki TsongasJonathan A. Golnik
$2M
Raised by the campaign
$402K
$2M
Spent by the campaign
$388.8K
$3K
Cash on hand
$13.2K
Other candidates' campaigns: Robert M. Clark $14.7K · Dale E. Brown $5K.
Campaign money: FEC, through Dec 31, 2010.
Source: FEC campaign filingsUpdated Dec 31, 2010
The candidates
Niki Tsongas (D)Jonathan A. Golnik (R)
Also on the ballot: Dale E. Brown (Other party), 2.0%; Robert M. Clark (Other party), 0.9%