@JPB,
A glance at the election map shows, once again, that the red states have together a continuous, unbroken land and sea border.
Those are the essential features of an integrated nation and an important force which might drive them into unity is the ridiculous manner in which some over-confident spokespersons from the blue states are passing incoherent opinions about them on the basis of a 2.5% lead in the popular vote. A reduction incidently from the 6.7% lead in 2008.
Another important force being a religious consensus.