Old saying is follow what politicians do, not what they do. In the span of one week, Trump has turned a 180 on his entire campaign strategy. He was basically Cruz's BFF for 6 months. He wouldn't attack. He was praising him everywhere he went. His entire self-admitted strategy caught on tape with donors was to shower him with love. In the course of one week, Trump's gone to attacking Cruz bitterly on twitter, to attacking him to reporters and interviewers, to attacking him at his rallies. When will his negative ads start running? Confident campaigns do not do such...