Secret Service Director Kimberly Cheatle is resigning from her post over the agency’s failures to properly protect former President Donald Trump from an attempted assassination.

Her resignation follows an hours-long hearing on Capitol Hill on Monday in which Cheatle  testified before the House Oversight Committee in the wake of the July 13 (failed) assassination attempt on Trump.

Numerous lawmakers—from both sides of the aisle—had called for Cheatle to resign after a gunman fired multiple shots at Trump during a campaign rally in Butler, Pennsylvania, about 33 miles north of Pittsburgh. A former fire chief, Corey Comperatore, 50, died shielding his family from the gunfire, and two other rally attendees were injured. 

Throughout the hearing, Cheatle angered lawmakers by refusing to divulge information, citing the ongoing investigation into the assassination attempt.

The Secret Service did not immediately respond to a request for comment from The Daily Signal.

“The assassination attempt on former President Donald Trump on July 13th is the most significant operational failure at the Secret Service in decades and I am keeping him and his family in my thoughts,” Cheatle said in written testimony on Monday. “I would like to offer my sincerest condolences to the family of Corey Comperatore, a former fire chief and a hero, who was killed in this senseless shooting. I would also like to acknowledge those who were injured in Butler, Pennsylvania, David Dutch and James Copenhaven, and I wish them a speedy recovery.”

Fred Lucas, Virginia Allen, and Elizabeth Mitchell contributed to this report.

This is a breaking news story, please check back for more details.