Where would we be without Teresa Heinz? The fantastically rich, wildly candid wife of Sen. John Kerry is the only compelling figure so far in a presidential race that otherwise threatens to be devoid of color, drama, and really chewable stories. But "compelling" doesn't begin to capture the unmuzzled abandon, the compulsive, almost imperial determination to say and do as she pleases -- in short, the bottomless newsiness that this woman brings to virtually every encounter she has with the big-time political media. Mrs. Heinz Kerry -- in a rare concession to the practical realities of politics, she recently added...