1990Final results
1990 election for Illinois's 9th District
U.S. House · Illinois
Sidney Yates (D) won with 71.2% of the vote, defeating Herbert Sohn (R) by 42.4 points.
Sidney YatesDemocrat · winner
71.2%96,557
Herbert SohnRepublican
28.8%39,031
135,588 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 1990
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
$779.1K
Raised by the campaign
$11.5K
$839.1K
Spent by the campaign
$15.2K
$53.8K
Cash on hand
$4.3K
Campaign money: FEC, through Dec 31, 1990.
Source: FEC campaign filingsUpdated Dec 31, 1990