President Bush isn't a conservative. He's a radical - the leader of a coalition that deeply dislikes America as it is. Part of that coalition wants to tear down the legacy of Franklin Roosevelt, eviscerating Social Security and, eventually, Medicare. Another part wants to break down the barriers between church and state. And thanks to a heavy turnout by evangelical Christians, Mr. Bush has four more years to advance that radical agenda. Democrats are now, understandably, engaged in self-examination. But while it's O.K. to think things over, those who abhor the direction Mr. Bush is taking the country must maintain...