Per the "white demographic", independence, self-sufficiency, these are kinds of values of the America they know and some of these others sadly, don't tune into that. Of course, there are some who want to make that all about race.
That said, about 29% of black voters are registered independent, yes, they may have voted for Obama and voted for Kerry and will vote Clinton; but as blacks tell us, we really should go after that vote. It's that in some cities, Philadelphia, Cleveland etc. there is a big get out the vote action in the black community. That skews those figures as well.