2020Final results
2020 election for Illinois's 14th District
U.S. House · Illinois
Lauren Underwood (D) won with 50.6% of the vote, defeating Jim Oberweis (R) by 1.3 points.
Lauren UnderwoodDemocrat · winner
50.6%203,209
Jim OberweisRepublican
49.3%197,835
Joseph MonackOther party
0.0%2
401,238 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Lauren UnderwoodJim Oberweis
$7.9M
Raised by the campaign
$3.3M
$7.4M
Spent by the campaign
$3.2M
$537.9K
Cash on hand
$90.1K
Campaign money: FEC, through Dec 31, 2020.
Source: FEC campaign filingsUpdated Dec 31, 2020