Pennsylvania GOP activist who's been to 20 Trump rallies says Butler event was least secure venue he's been to - Fox News
- Pennsylvania GOP activist who's been to 20 Trump rallies says Butler event was least secure venue he's been to Fox News
- Live updates: Trump rally shooting investigation continues after assassination attempt CNN
- Secret Service spotted Trump rally shooter on roof 20 minutes before gunfire erupted ABC News
- A Blind Spot and a Lost Trail: How the Gunman Got So Close to Trump The New York Times
- Opinion | Incivility and the Tragedy of the Commons The Wall Street Journal