Here's my take: if Maine was actually this close, the Clinton campaign would be pouring resources into Maine. One could argue that the election has only now tightened to the extent that Maine is competitive but, even then, this poll suggests that Maine has an even PVI and the Clinton campaign would have already opened campaign offices in Maine if this was the case.
This is likely...a junk poll! We'll see though, I expect Maine to swing to Trump if Clinton wins by anything less than 5-6 points nationally.
The Clinton campaign is incompetent.
