1990Final results
1990 election for Massachusetts Senate District D20
Massachusetts State Senate · Massachusetts
Patricia McGovern (D) won with 59.5% of the vote, defeating Alba N. Castillo (R) by 19.0 points.
Patricia McGovernDemocrat · winner · incumbent
59.5%32,294
Alba N. CastilloRepublican
40.5%21,998
54,292 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 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET