Several high-ranking Secret Service agents are stepping down just before the public release of an internal investigation into the failures that led to the assassination attempt on Donald Trump in Butler, PA on July 13. Among the findings of the report is the revelation that agents did not instruct local police to secure the rooftop of the building where the gunman positioned himself, two anonymous sources have revealed to the Washington Post. Mike Plati, the assistant director of the Office of Protective Operations, officially retired on Friday, according to a statement from the Secret Service. John Buckley, a senior executive...