LOL!
People in northern Maine have long referred to the southern most part of Maine as “North Massachusetts.” The problem is the fact that the southern-most part of Maine is within commuting distance to Boston.
Some of them re-locate here, and bring their lib voting patterns with them....just like when New Yorkers move to Florida, Angelinos move from L.A. to Arizona and Nevada, northeasterners who re-locate to North Carolina, etc.
I had also heard that Maine has unfortunately become something of a magnet for the dependency class. The ratio of generosity of welfare benefits vs. the cost of living makes moving there attractive to them.
I seem to recall the Kennebec as the 'dividing line'...