2024Final results
2024 election for Connecticut Senate District 19
Connecticut State Senate · Connecticut
Cathy Osten (D) won with 56.9% of the vote, defeating Jason Guidone (R) by 13.8 points.
Cathy OstenDemocrat · winner
56.9%26,902
Jason GuidoneRepublican
43.1%20,360
47,262 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET
The seat over time
D − R margin in this seat's races around 2024
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 12:13 PM ET