2006Final results
2006 election for Illinois's 10th District
U.S. House · Illinois
Mark Kirk (R) won with 53.4% of the vote, defeating Daniel J. Seals (D) by 6.8 points.
Mark KirkRepublican · winner
53.4%107,929
Daniel J. SealsDemocrat
46.6%94,278
202,208 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 2006
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.
Daniel J. SealsMark Kirk
$1.9M
Raised by the campaign
$3.2M
$1.9M
Spent by the campaign
$3.5M
$35.4K
Cash on hand
$72.7K
Campaign money: FEC, through Dec 31, 2006.
Source: FEC campaign filingsUpdated Dec 31, 2006