2008Final results
2008 election for Illinois's 12th District
U.S. House · Illinois
Jerry F. Costello (D) won with 71.4% of the vote, defeating Timmy Jay Richardson Jr. (R) by 46.5 points.
Jerry F. CostelloDemocrat · winner
71.4%212,891
Timmy Jay Richardson Jr.Republican
24.9%74,382
Rodger JenningsGreen
3.7%10,907
298,181 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 2008
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.
Jerry F. CostelloNo Republican
$1.5M
Raised by the campaign
—
$830.9K
Spent by the campaign
—
$2.1M
Cash on hand
—
Other candidates' campaigns: Rodger Jennings $11.5K.
Campaign money: FEC, through Dec 31, 2008.
Source: FEC campaign filingsUpdated Dec 31, 2008