Rocky Marciano was the only heavyweight champion who never lost a single fight in his whole career-- and, at the time, he seemed the least likely fighter to do that. In many a boxing match, he was battered, bruised and bleeding. One of the reasons Marciano took so much punishment in the ring was that he had shorter arms than most other heavyweights. It was easier for others to hit him than for him to hit them. In a sense, Republicans today are in a similar position in the political arena. With most of the media heavily tilted toward the...