The Secret Service, which is responsible for the protection of current and former US presidents, faces a crisis after a gunman was able to fire on Trump from a roof overlooking the outdoor rally in Pennsylvania on July 13.

The Secret Service faces investigations from multiple congressional committees and the internal watchdog of the US Department of Homeland Security, its parent organization, over its performance. President Joe Biden, who has ended his reelection campaign, has also called for an independent review.

Secret Service Deputy Director Ronald Rowe, a 24-year veteran of the agency, will serve as acting director.