1970Final resultsIncumbent defeated
1970 election for Illinois Legislative District 15
Illinois State Senate · Illinois
Thomas G. Lyons (D) won with 59.4% of the vote, defeating Walter Duda (R) by 18.8 points.
Thomas G. LyonsDemocrat · winner
59.4%39,784
Walter DudaRepublican · incumbent
40.6%27,184
66,968 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET