Also, Massachusetts is the most liberal/Democratic state in the Union (see above) and it has been so for quite some time, certainly since 1972. Not only were they the only state to vote for McGovern, they were also the only state to give Clinton over 60% in 1996 (and Kerry in 2004). Further, the Democrats dominate the state; until recently, they were an all-Democratic state, and until 2008, the only such state--it voted for Obama in 2008, has a Democratic governor and lieutenant governor, (had) 2 Democratic senators and all representatives are Democrats.
Why didn't Massachusetts vote for Carter or Mondale in 1980 and 1984 then?
Seriously? Reagan won just about everywhere. Massachusetts was very close, but not much could be done for those 2 guys. Together they managed to lose 93 out of 100 states.