Last week nasty anti-Trump robocalls started running in South Carolina. Donald Trump accused the Cruz camp of being behind the calls.Of course, Senator Cruz denied having anything to do with the ads. But it was a lie. And now there is proof that a Cruz PAC is behind the nasty anti-Trump and anti-Rubio robocalls.The Washington Post reported: Natalie Barrett, a 53-year-old schoolteacher from Westminster, got a robo-call earlier this month and ended up furious. It started off simple enough, an automated man’s voice asking her age and gender, then quizzing her on which Republican candidates she liked. But when she...