2020Final results
2020 election for Connecticut Senate District 19
Connecticut State Senate · Connecticut
Cathy Osten (D) won with 53.4% of the vote, defeating Steve Weir (R) by 8.6 points.
Cathy OstenDemocrat · winner · incumbent
53.4%25,848
Steve WeirRepublican
44.8%21,680
William H. RussellOther party
1.8%892
48,420 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET