I don't doubt there are a fair number of racist Republicans around who hate the thought of a black man in the White House (as against decent Republicans who would see that as a good thing to set against their disappointment at their man having lost - tbe reaction expressed by McCain and for that matter Bush).

But it seems an unnecessary assumption that this in itself relates very much to the abortion issue. If it had been a white presidential candidate who was identified as being pro-abortion, would they have escaped this kind of attention?