2016Final results
2016 election for Massachusetts Senate District 34
Massachusetts State Senate · Massachusetts
Patrick O'Connor (R) won with 56.5% of the vote, defeating Paul J. Gannon (D) by 13.2 points.
Patrick O'ConnorRepublican · winner
56.5%52,440
Paul J. GannonDemocrat
43.3%40,193
92,773 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET
The seat over time
D − R margin in this seat's races around 2016
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 4:52 AM ET