 100 degrees when I arrived in Tucson to meet the senator. He was undeterred. Senator Kelly wanted to show me Arizona from another vantage point. No, not from a spaceship, but via a spin in a Columbia 400. First, we picked up Sonoran hot dogs to go. Wrapped in bacon, loaded with beans and mayo, this isn't the fare I would typically go for before boarding a tiny plane. But this wasn't a typical day.