Romney bristled angrily when prodded by Rick Perry at an October debate. Romney not only grew visibly uncomfortable during an extremely fair interview with Fox’s Brett Baier, he confronted Baier afterwards to complain Baier was mean to him. And he has a long track record of similar behavior. He blew up at an Iowa radio host in 2007 (video after jump). Not only is Mitt Romney a liar, but he has trouble controlling his temper in the face of the mildest of criticism. Much more in this November piece from TNR’s Alec MacGillis, Tempermental Journey.