2008Final results
2008 election for Illinois's 15th District
U.S. House · Illinois
Timothy V. Johnson (R) won with 64.2% of the vote, defeating Steve Cox (D) by 28.4 points.
Timothy V. JohnsonRepublican · winner
64.2%187,121
Steve CoxDemocrat
35.8%104,393
291,514 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.
No DemocratTimothy V. Johnson
—
Raised by the campaign
$321.4K
—
Spent by the campaign
$295.9K
—
Cash on hand
$109.8K
Campaign money: FEC, through Dec 31, 2008.
Source: FEC campaign filingsUpdated Dec 31, 2008