YOUNGSTOWN, Ohio - On the campaign trail, Teresa Heinz Kerry is soft-voiced, elegant and eloquent, and practices a brand of politics rarely heard from the wife of a presidential candidate. She speaks her mind and doesn't let anyone else speak for her. Her opinions are both personal and partisan and she delivers them with aplomb, as she demonstrated in the course of a day of barnstorming for her husband, Democratic presidential contender John Kerry of Massachusetts. Bouncing through a series of meetings and interviews in recession-plagued Midwest towns, Heinz Kerry responded promptly to a question about first lady Laura Bush...