Probably so. I commented after the 2008 election that it was the white guilt vote that served as the swing vote to give Obama the win. Hopefully, some of the guilt-ridden have come to their senses.
In a straight-forward, level-playing field, standup-fight...sure.
But one must take into account all the fraud and cheating that went on in 2008. I think that would account for higher numbers than the (still substantial) white guilt thing.