From another thread:
The next Democratic coalition is here, and it is the predominant feature of the contemporary American landscape. The next few decades are going to be very difficult for the Republicans, a la the 1930s through 1960s.
The Democrats have created a winning coalition of minorities, younger/better educated whites, and unmarried women. Like all coalitions, it will eventually lose ground or break up. Say the GOP is ascendant sometime in the next 20-40 years. What does their coalition look like?