I'm in a rental car with Al Franken, and we're driving across New Hampshire on the Sunday before the nation's first primary, heading to a John Edwards rally. The Democrats are in a kooky mood following the sudden collapse of Howard Dean in Iowa, and Franken -- comedian, celebrity, scourge -- is spending two days in the state not in any official capacity but as a sort of good-will representative from the party's satiric wing. He is not, as you might think from the outrageous trappings of his comedy, an extreme lefty but rather a devout party man, one who...