RALEIGH, N.C. - There were few people closer to John Edwards during his presidential campaigns than Fred Baron, a renowned Texas trial lawyer who evolved into one of the Democratic Party’s key fund-raisers. Baron, who made his fortune as a celebrated litigator on asbestos-injury cases before turning his attention to Democratic presidential tickets, was part of Edwards’ inner circle of advisers. But when it came to one key financial decision, Baron said he chose to keep the former senator out of the loop. On Friday, after Edwards confessed to having an affair with Rielle Hunter, a video producer with whom...