2010Final results
2010 election for Connecticut Senate District 27
Connecticut State Senate · Connecticut
Andrew J. McDonald (D) won with 58.8% of the vote, defeating Bob Kolenberg (R) by 17.7 points.
Andrew J. McDonaldDemocrat · winner · incumbent
58.8%14,750
Bob KolenbergRepublican
41.2%10,321
25,071 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 2010
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET