1986Final results
1986 election for Illinois's 14th District
U.S. House · Illinois
J. Dennis Hastert (R) won with 52.4% of the vote, defeating Mary Lou Kearns (D) by 4.7 points.
J. Dennis HastertRepublican · winner
52.4%77,288
Mary Lou KearnsDemocrat
47.6%70,293
147,581 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 1986
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.
Mary Lou KearnsJ. Dennis Hastert
$329.1K
Raised by the campaign
$342.5K
$322.6K
Spent by the campaign
$327.2K
$6.4K
Cash on hand
$15.5K
Campaign money: FEC, through Dec 31, 1986.
Source: FEC campaign filingsUpdated Dec 31, 1986