We are one week into Mitt Romney’s selection of Paul Ryan. A number of polls are coming out telling a variety of stories about what it means. But one thing is clear: Barack Obama’s campaign has had several significant strategic failures this summer. And they failed to define Paul Ryan out of the gate with their Mediscare tactics. And they failed to define Mitt Romney this summer with a huge campaign spend. The Obama campaign hoped to use the summer to define Mitt Romney. They spent $25 million in May ads. Obama spent $58m in June. What effect did it...