2004Final resultsIncumbent defeated
2004 election for Illinois Representative District 20
Illinois House of Representatives · Illinois
Michael P. McAuliffe (R) won with 59.2% of the vote, defeating Ralph C. Capparelli (D) by 18.4 points.
Michael P. McAuliffeRepublican · winner · incumbent
59.2%25,022
Ralph C. CapparelliDemocrat · incumbent
40.8%17,249
42,271 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 2004
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET