Spencer Pratt’s sister is making a dramatic U-turn. A short time after publicly torching her brother’s bid for Los Angeles mayor and warning voters supporting him would be “a vote for stupidity,” Stephanie Pratt is now singing a very different tune. “I admit I was the first person to tell people that they were idiots if they voted for my brother,” she wrote in an email to Vanity Fair. “Wow, was I wrong. He has spent every day since the fires, finding the facts, the mistakes, the negligence and uncovering the truth that they never wanted us to know.” Shortly...