2006Final results
2006 election for Illinois Representative District 20
Illinois House of Representatives · Illinois
Michael P. McAuliffe (R) won with 60.4% of the vote, defeating Mark Dobrzycki (D) by 20.8 points.
Michael P. McAuliffeRepublican · winner · incumbent
60.4%18,206
Mark DobrzyckiDemocrat
39.6%11,930
30,136 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 2006
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET