Barking Like an Underdog Prodded by a right-wing challenger, a folksy, feisty Bush hits the campaign trail with a vengeance

In politics, as in sports, George Bush never fights harder than when he is behind. Though he would bristle at the suggestion, he actually likes to be dismissed as a loser so he can pull off an upset. Thus he arrived in New Hampshire last week acting more like a scrappy underdog than an incumbent President. For 15 hours he scrambled around the southeast part of the economically devastated state, shaking hands, patting cows and assuring residents that he understood their worries. "I know I've got a lot of problems here," he told them, "but we're going to take care of...