[meandog]

Obama probably takes somewhere in the neighborhood of 92 percent of the African-American vote; the 8 or so percentage McCain gets is made up of primarily A-A (All American) veterans who just happen to have black skin. McCain probably gets the plurality of Hispanics. Of whites, the pointy-headed intellectual liberals (Dems and GOP) will go Obama but the working-class conservative-leaning Democrats will likely be McCain's. That leaves white consevative Republicans.
Though George "Mission Accomplished" Bush has made it darned difficult for a Republican to succeed (in much the same way that George "Read My Lips" Bush did, conservatives will really be the ones to tip the balance in the demographics

[Grunthor]

“That leaves white consevative Republicans.”

Perhaps stabbing the base in the back for the last eight years wasn’t all that bright on McBackstabbers part, eh?