No publicly available polling of the U.S. Senate race shows him winning. He is, instead, clinging to third or second place. "It reminds me of Dr. Johnson's dog, who walked on two hind feet," said Larry Sabato, the political scientist who directs the University of Virginia’s Center for Politics. "You don't criticize the way he walks, you just marvel that he can do it at all." With the state's senior senator, John McCain, gravely ill and away from Washington, D.C., voters are looking for a candidate who will ferociously defend their interests in the Senate for six years. "I have a hard time beli...