Stare for 30 seconds at the blue-state/red-state map of the continental United States and you might get a cold shiver, for the stark grouping of the colors looks as if we're having a second Civil War. It's not that bad—but it's bad. President Bush, he of the victorious red states, says—just as he did four years ago upon his first victory—that he will be a uniting force. But then, how to explain why the acts of this unifier's first four years have brought us to such disunion? Bush was asked that very question at his post-election news conference. He chose...