1988Final results
1988 election for Illinois's 9th District
U.S. House · Illinois
Sidney Yates (D) won with 66.1% of the vote, defeating Herbert Sohn (R) by 33.1 points.
Sidney YatesDemocrat · winner
66.1%135,583
Herbert SohnRepublican
32.9%67,604
Jessie FieldsOther party
1.0%2,000
205,187 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 1988
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
$126.7K
Raised by the campaign
$42K
$122.9K
Spent by the campaign
$36.8K
$113.8K
Cash on hand
$6.1K
Campaign money: FEC, through Dec 31, 1988; FEC, through Jan 31, 1989.
Source: FEC campaign filingsUpdated Dec 31, 1988