1978Flipped from DemocraticFinal resultsIncumbent defeated
1978 election for Illinois Legislative District 10
Illinois State Senate · Illinois
Aldo A. Deangelis (R) won with 58.1% of the vote, defeating Robert T. Lane (D) by 16.1 points, a seat Democrats won last time.
Aldo A. DeangelisRepublican · winner
58.1%28,623
Robert T. LaneDemocrat · incumbent
41.9%20,664
49,287 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET