2010Final results
2010 election for Massachusetts's 4th District
U.S. House · Massachusetts
Barney Frank (D) won with 53.9% of the vote, defeating Sean D. M. Mielat (R) by 10.5 points.
Barney FrankDemocrat · winner
53.9%126,194
Sean D. M. MielatRepublican
43.4%101,517
Susan F. AllenIndependent
1.5%3,445
Donald M. JordanOther party
1.2%2,873
234,127 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.
Barney FrankSean D. M. Mielat
$4.2M
Raised by the campaign
$2.5M
$4.3M
Spent by the campaign
$2.4M
$21K
Cash on hand
$7.5K
Campaign money: FEC, through Dec 31, 2010.
Source: FEC campaign filingsUpdated Dec 31, 2010
The candidates
Barney Frank (D)Sean D. M. Mielat (R)
Also on the ballot: Susan F. Allen (Independent), 1.5%; Donald M. Jordan (Other party), 1.2%