The Secret Service acting head expressed shame and apologized for the security failure during the assassination attempt on Donald Trump by a gunman at a campaign rally in Butler, Pa. The gunman wounded several people, including Trump, leading to calls for immediate firings from angry lawmakers, particularly Republicans.

The acting director admitted to failures in securing the rooftop where the shooter fired and promised a thorough investigation to uncover the lapses. Lawmakers criticized the failure to prevent the gunman’s access to the roof and demanded more transparency in sharing updates with the public.

The Secret Service plans to enhance security measures by deploying more countersnipers and drones at events. The agency also aims to improve communication with local law enforcement to avoid similar security breaches in the future.

This is a developing story. Stay tuned for updates.