doubt that he misheard the question and went into this auto pilot mode. by my god, four days ago he should have said, you really think i'd go into iraq knowing there were not weapons of mass destruction? hell my brother wouldn't have done that. why he stammered for four days i don't know. running a campaign in florida, that's big time. but that's not like running for the presidency. >> michael smerconish thank you as always for our friday chats. we'll see you tomorrow morning 9:00 a.m. eastern here on cnn. coming up next traveling at speeds more than 700 miles per hour. the creator of what's being called the hyperloop says this train tube would mean human error will not be the cause of crashes. we'll talk about what that could mean for all of us. plus new video surfaces on the shooting involving wisconsin officer and an unarmed man. the officer not facing charges in his death, which is leading to even more protests.