1988Final results
1988 election for Illinois Representative District 83
Illinois House of Representatives · Illinois
Leroy Vanduyne (D) won with 62.9% of the vote, defeating Joseph M. Jenco (R) by 25.7 points.
Leroy VanduyneDemocrat · winner · incumbent
62.9%19,291
Joseph M. JencoRepublican
37.1%11,395
30,686 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1988
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET