Senator Rand Paul (R-KY) spoke with Margaret Brennan on Face the Nation Sunday about the release of a report regarding the attempted assassination of then-presidential candidate Donald Trump in Butler,

"This report reveals a disturbing pattern of communication failures and negligence that culminated in a preventable tragedy," Sen. Rand Paul wrote in the report.

One year after the assassination attempt on Donald Trump in Butler, witnesses and officials reflect on the tragic event that killed Corey Comperatore and injured others.

A report released by the Government Accountability Office says the United States Secret Service received information of a threat against Donald Trump just days before an assassination attempt at his rally in Butler,

Comperatore, a devout Christian who adored his family and two Dobermans, died while shielding his wife and daughters from bullets fired by would-be assassin Thomas Matthew Crooks, 20, who had been perched atop the rooftop of a building adjacent to the rally stage last July 13.

President Trump reflects on the one-year anniversary of the Butler, Pennsylvania, assassination attempt that left one dead and two wounded, nearly claiming his own life