In this type of discusson people need to be precise in their choice of words, as the founders were in their choice of words in the Constition.
Per John Locck, PERSONS have the right to revolution. That is quite different from GOVERNMENTS having such a right. Governments (state, federal and world) do not have rights. They have powers.
The proper way to phrase the question= is whether Maine (or any government) has the POWER to do what it wants.
When, as with the New Deal, a group of individual persons seizes control of the mechanisms of the state, the distinction is irrelevant. FDR and his cronies accomplished a successful revolution and ended up as the government. Beyond that, I don't understand your point.