1970Final results
1970 election for Illinois Legislative District 7
Illinois State Senate · Illinois
James C. Soper (R) won with 61.7% of the vote, defeating Joseph S. Witkoski (D) by 23.3 points.
James C. SoperRepublican · winner · incumbent
61.7%44,698
Joseph S. WitkoskiDemocrat
38.3%27,793
72,492 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 1970
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET