Think Italy and call us back.
I really don't see any way the Democrats can hold together their coalition. It has been for 12+ years and continues to be shaped by the needs and abilities of Bill Clinton. However, Bill Clinton himself is effectively out of the game at this point and Hillary never had his talent for persuasion. The Democrat coalition is certain to crack apart. There's no way to hold together black preachers and aggressive sodomy activism in one party, or the anti-war Nazis with the Reagan Democrats. It is no longer unheard of for a union to endorse a Republican, even. They can't survive on gays and academics alone.