Would be interesting to see Charlie Baker mount a primary challenge to Trump. Baker, a Republican, won the gubernatorial election in deep-blue Massachusetts by a crushing margin of 33 percentage points.
(Not that I’m aware of any intent by Baker to do so; just saying it would be interesting. He might be the most electable Republican in the presidential general-election that there could be.)
William Weld was also an extremely popular governor of Massachusetts. Somehow, New England variety Republicanism doesn’t seem to appeal Republicans in the rest of the country.