so that side-by-side comparison is going to be harder for bernie sanders, thousands and thousands of people are eager for your every word. it wasn't easy for barack obama. it wasn't particularly easy for him even at the end of the prime minister debates. debating skills weren't there. the way you project hope and change is not really the same as the way you really slash and burn through a debate. even though it's not going to a slug fest it still requires those skills. people want to see the fight brought to life on the stage. if only it's a fight against republicans. bernie sanders has to embrace that while also looking the part on that debate stage. that's not easy. >> richard wolffe and margie o'mara, thank you. >> thank you. coming up, reaction to a report saying that the police killing of 12-year-old tamir rice was justified. ♪ ♪