1978Final results
1978 election for Massachusetts Senate District D16
Massachusetts State Senate · Massachusetts
Samuel Rotondi (D) won with 71.0% of the vote, defeating Diane R. Porter (R) by 42.0 points.
Samuel RotondiDemocrat · winner · incumbent
71.0%39,862
Diane R. PorterRepublican
29.0%16,259
56,146 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET