If you were a successful drug dealer in New York or Connecticut, why would you go out of your way to reach a place with a smaller, more rural population with fewer customers and zero personal connections? That literally makes no sense whatsoever. I'll give you a hint: Maine's drug dealers live in Maine.
Eh, I've read heroin goes for a much higher rate in Maine than in NYC. Supply vs. Demand and all. I wouldn't be surprised if there were some truth to what LePage is saying, though he clearly went a bit off the rails in how he said it.