the repugs' blatant racism is boggling

Bob Shrum explodes over Pat Buchanan's racism as Limbaugh uses MLK against Sotomayor
(Crooks and Liars)
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This is a fairly astounding tactic for a party that is floundering as badly as the repugs are these days.
They do realize that there are a limited amount of rich, old, white men, don't they?