only moments ago paul ryan addressed the controversy. he called it unhelpful. plus, opening up. president obama now free from the stresses of office sitting down for a new interview with david letterman. we ll get to that. let s begin with new developments in the racist, incendiary comments from the president of the united states, the outrage and the pushback this afternoon. the president ignored questions about referring to some african-american countries as, well, i m not going to say it, but surely you ve heard it by now. and the conclusion of a ceremony where he signed a proclamation celebrating martin luther king jr. day. mr. president, are you a racist? mr. president, can you respond to these serious questions, sir? mr. president, are you a racist? very explicit questions several times, are you a racist? well, democratic senator dick