A crowd listens to Hillary Clinton speak in Portsmouth, N.H., in September. Presidential historian James McGregor Burns, who studied the uneasy dynamics of her husband's White House, says Hillary Clinton's setbacks during those years amounted to "educational failures" that toughened her. "She's been tested over and over again," he said. "The question for voters is whether they feel she passed those tests and whether they think she learned from them."
Barbara Davidson / Los Angeles Times