"At this point, we can't be certain who [Obama's] parents are, which means I have no proof that he's even a black man. He could be white, and if that's the case I don't understand why we're questioning his legitimacy." -- Steven Colbert, mocking birthers on the Colbert Report.
If there's any question by now that there's a strong undercurrent of racism in the birther smears, the "unqualified black man uses affirmative action" canard that Rump Trump is trotting out over Obama's college records should answer that question.
UPDATE: Venerable CBS journalist Bob Schieffer came out and accused Rump of racism. Good for him.