1990Flipped from DemocraticFinal resultsIncumbent defeated
1990 election for Connecticut Senate District 12
Connecticut State Senate · Connecticut
William A. Aniskovich (R) won with 52.2% of the vote, defeating Thomas J. Sullivan (D) by 4.5 points, a seat Democrats won last time.
William A. AniskovichRepublican · winner
52.2%18,093
Thomas J. SullivanDemocrat · incumbent
47.8%16,536
34,629 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 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET