20% of the White middle class that voted for Obama in 2008 say they will now vote for Romney. If the other 80% of the White middle class that voted for Obama would switch to Romney, then the need for Black support becomes moot. Romney would win in a landslide, and owe NOTHING to certain minority groups.
Same with gays and lesbos-they are only 3% of the population, but you were think they were a majority the way they are pandered to by the left.