2010Final results
2010 election for Pennsylvania's 4th District
U.S. House · Pennsylvania
Jason Altmire (D) won with 50.8% of the vote, defeating Keith J. Rothfus (R) by 1.6 points.
Jason AltmireDemocrat · winner
50.8%120,827
Keith J. RothfusRepublican
49.2%116,958
237,785 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.
Jason AltmireKeith J. Rothfus
$2.5M
Raised by the campaign
$1.3M
$2.5M
Spent by the campaign
$1.3M
$10K
Cash on hand
$28.4K
Campaign money: FEC, through Dec 31, 2010.
Source: FEC campaign filingsUpdated Dec 31, 2010