2022Final results
2022 election for Illinois's 11th District
U.S. House · Illinois
Bill Foster (D) won with 56.4% of the vote, defeating Catalina Lauf (R) by 12.9 points.
Bill FosterDemocrat · winner
56.4%149,172
Catalina LaufRepublican
43.5%115,069
264,281 votes
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
The seat over time
D − R margin in this seat's races around 2022
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 2, 2026, 5:14 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Bill FosterCatalina Lauf
$3.3M
Raised by the campaign
$2.8M
$6.3M
Spent by the campaign
$2.7M
$805.1K
Cash on hand
$52.2K
Campaign money: FEC, through Dec 31, 2022.
Source: FEC campaign filingsUpdated Dec 31, 2022