A year after the assassination attempt against Donald Trump in Butler, Pennsylvania, multiple investigations have detailed the breakdowns that occurred that day.

CBS News was taken inside the Secret Service's James J. Rowley Training Center in Laurel, Maryland, to see the agency's newest eyes in the sky, a fleet of military-grade drones that reimagine aerial reconnaissance in a post-Butler era.

The Government Accountability Office (GAO) found that the classified intelligence had been presented to Secret Service officials a full 10 days before the assassination attempt, but the agency’s

President Donald Trump praised a new book by the Washington Examiner’s Salena Zito, saying it provides an eyewitness account of the “unbreakable spirit” demonstrated after his assassination attempt in Butler,