 Frustration. Now rebooked on another flight leaving from a different airport. This has got to be a huge inconvenience. Yes, huge. Across the country today, more than 6,000 flights delayed. More than 1,700 canceled. Donald Trump's first campaign rally since being shot at another rally a week ago. ABC's Jay O'Brien on hand in Grand Rapids, Michigan. I stand before you only by the grace of Almighty God. That's true.