Huh. MA is a state I thought would have trended to Trump.
Massachusetts is arguably the epicenter of the "knowledge economy" (I feel dirty for saying this). The Boston metro area has one of the largest concentrations of highly-educated professionals in the country. It's not exactly a place where Trump has a lot of appeal...
Some parts of non-Boston MA I could see liking Trump more than other Republicans, but Boston could outweigh that.
Another factor is Romney had a very mild homestate advantage that MA is bouncing back from.
If Massachusetts starts to develop a bog-standard 'big cities=Democratic, hinterlands=Republican' political geography I'll plotz.