If Al Gore can say goodbye to presidential politics on "60 Minutes," it's probably okay for Sen. John Edwards of North Carolina to say hello on the "Today" show. We hope, though, that it's not a trend. Seven in the morning is a bit early for shopping for a new leader, and not everybody can deal with the shrieks and giggles these dark dawns. Let us hope that the others in the clot of candidates at the starting gate will choose brighter hours. Edwards, a trial lawyer who made a fortune representing people suing corporations, wishes to be "a champion...