1988Final results
1988 election for Illinois Legislative District 31
Illinois State Senate · Illinois
Adeline Jay Geokaris (R) won with 66.4% of the vote, defeating Bob Gesiakowski (D) by 32.9 points.
Adeline Jay GeokarisRepublican · winner · incumbent
66.4%34,430
Bob GesiakowskiDemocrat
33.6%17,387
51,817 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