2000Final results
2000 election for Illinois Representative District 55
Illinois House of Representatives · Illinois
Rosemary Mulligan (R) won with 52.0% of the vote, defeating Mary Beth Tighe (D) by 4.0 points.
Rosemary MulliganRepublican · winner · incumbent
52.0%17,448
Mary Beth TigheDemocrat
48.0%16,119
33,567 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 2000
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET