1970Final results
1970 election for Connecticut Senate District 20
Connecticut State Senate · Connecticut
Peter L. Cashman (R) won with 59.0% of the vote, defeating Joseph Trantino (D) by 18.1 points.
Peter L. CashmanRepublican · winner
59.0%18,804
Joseph TrantinoDemocrat
41.0%13,045
31,849 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 1970
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET