In yet another move that belies his complete lack of self-awareness, Donald Trump canceled his Letterman appearance for May 18 due to comments the late night host made about whether or not Trump’s birther statements make him a big ol’ racist. Speaking about himself in the third person to the New York Post, Trump wrote, “there is nobody who is less of a racist than Donald Trump,†virtually guaranteeing a Biggest Racist sketch on SNL this weekend.