Nope, Clinton is up double digits in Maine (single digits in the 2nd congressional district). No way Trump is popular at all there. He lost this state in the primaries
It was a caucus that was really unrepresentative of what people actually thought. Cruz always did well in caucuses, while Trump won every other northeast state by a wide margin. If Maine has been a primary, it is very likely Trump would have won it. Also, Maine has a history of electing angry white guys into office. (Paul LePage, for example.)