1970Final resultsIncumbent defeated
1970 election for Illinois Legislative District 25
Illinois State Senate · Illinois
Theodore A. Swinarski (D) won with 62.7% of the vote, defeating Joseph J. Krasowski (R) by 25.5 points.
Theodore A. SwinarskiDemocrat · winner
62.7%37,293
Joseph J. KrasowskiRepublican · incumbent
37.3%22,146
59,439 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