Their battleground sample - interpret as you wish:
White ...................................................................78%
Black ...................................................................11%
Hispanic .................................................................7%
Other .................................................................... 4%
2012 Exit polls by state:
Colorado: 78% W, 3% AA, 14% L, 6% Other
Florida: 67% W, 13% AA, 17% L, 3% Other
Iowa: 93% W, 2% AA, 3% L, 2% Other
Michigan: 77% W, 16% AA, 3% L, 4% Other
N. Carolina: 70% W, 23% AA, 4% L, 3% Other
N. Hampshire: 95% W, 1% AA, 3% L, 1% Other
Nevada: 64% W, 9% AA, 19% L, 9% Other
Ohio: 79% W, 15% AA, 3% L, 3% Other
Pennsylvania: 78% W, 13% AA, 6% L, 3% Other
Virginia: 70% W, 20% AA, 5% L, 5% Other
Wisconsin: 86% W, 7% AA, 4% L, 3% Other
Judging by the size of these states and their demographic compositions the battleground composite should be:
74% W, 13% AA, 9% L, 4% Other