If you were to spend a few hours sitting through a reel of this season's congressional campaign commercials -- a numbing project, to be sure -- you would be likely to come away with a peculiar picture of the political landscape. For one thing, you might easily get the impression that all the candidates, especially the incumbents, are passionate enemies of the Washington Establishment. You might also suppose no one is a Democrat -- especially the Democrats. If there's a characteristic sound bite this year, it's the muffled tread of politicians on tiptoe.
So here's Senator Bob Kerrey, the Nebraska Democrat,...