1990Final results
1990 election for Massachusetts State Senate: Berkshire–Franklin–Hampden–Hampshire
Massachusetts State Senate · Massachusetts
Jane Marie Swift (R) won with 52.2% of the vote, defeating Sherwood Guernsey (D) by 4.4 points.
Jane Marie SwiftRepublican · winner
52.2%29,141
Sherwood GuernseyDemocrat
47.8%26,689
55,830 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET