Remember toff wanker John Derbyshire and his racist rules:
(10g) Before voting for a black politician, scrutinize his/her character much more carefully than you would a white.
He was run out of town for this, but this is basically the rule the Village is following by tacitly tolerating Birthers, yet making Harry Reid the worst person ever.
So, under Derbyshire Rules, I guess lies the dog whistle of "Obama wasn't vetted."
12:37 PM PT: Why oh why can't we have a better press corps?