Old saying is follow what politicians do, not what they do. In the span of one week, Cruz has did a 180 on his entire campaign strategy. He was basically Trump's mini-me 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, he's gone to attacking him on twitter, to attacking him to reporters, to attacking him at his rallies and now a major negative TV ad campaign. Confident campaigns do not do such 180 degrees...