“I said on the air, ‘I think, Donald, if you’re saying these things, I think that means you might be a racist,’†Letterman said. “I flat-out called him a racist. Well, he didn’t think that was funny.â€Â
Article source: http://www.huffingtonpost.com/entry/david-letterman-trump-apology_us_598a9605e4b0449ed5066c43?section=us_new-york