Since the hatred has been so vocal lately, you do get the feeling that it has more and more to do with his skin color.
I offered Mudwhistle a bet yesterday where I would leave the board if Romney were elected. His stakes were that he would change his tag line to "Obama was born in the USA". He refused. I guess getting a right wing douche to admit the obvious is too high a price?
Unless there was another reason. Wonder what it could be.