Democratic presidential candidate John Edwards recently defended taking a lucrative book contract from a publisher controlled by Rupert Murdoch -- whose News Corp. empire Edwards has sharply criticized -- by insisting that “every dime” of his $500,000 advance went to charity. Left unmentioned by Edwards, however, was that Murdoch’s HarperCollins paid portions of a $300,000 expense budget for the book to Edwards’s daughter and to a senior political aide, Jonathan Prince. The sums paid to Cate Edwards and Prince, who are listed as co-authors on the little-noticed 2006 coffee table book, "Home: The Blueprints of Our Lives," have not been...