1986Final results
1986 election for Illinois's 9th District
U.S. House · Illinois
Sidney Yates (D) won with 71.6% of the vote, defeating Herbert Sohn (R) by 43.3 points.
Sidney YatesDemocrat · winner
71.6%92,738
Herbert SohnRepublican
28.4%36,715
129,453 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.
Sidney YatesHerbert Sohn
$149.1K
Raised by the campaign
$36.6K
$97.5K
Spent by the campaign
$38.4K
$110K
Cash on hand
$998
Campaign money: FEC, through Dec 31, 1986.
Source: FEC campaign filingsUpdated Dec 31, 1986