Mitt Romney's campaign has plenty of shortcomings, but it has perfected the art of making incisive, persistent and effective attacks on his opponents. The all-out negativity strategy employed by his campaign and the super PAC working on its behalf has worked well — torpedoing Newt Gingrich's erstwhile surge and holding a still-surging Rick Santorum at bay. Romney's strategy isn't new, The New York Times reported. During the race for the Massachusetts governorship, Romney hired a man in a chicken suit to follow his rival to suggest her cowardice. But by unleashing such an onslaught, Romney has helped turn GOP primary season into a civil war. Political strategists say that while the tack helps Romney, it comes at a high price for the GOP.