U.S. Secret Service Director Kimberly Cheatle resigned Tuesday in the wake of mounting pressure following the assassination attempt on former President Trump, The Associated Press reports.

Cheatle testified before the House Oversight Committee Monday, just over a week after a would-be assassin Thomas Crooks attempted to take the life of Trump at his rally in Butler, Pa. on July 13.

Trump, during his rally, ever-so-slightly turned his head—narrowly missing the bullet shot by 20-year-old suspect Crooks’ AR-15-style rifle by just a quarter of an inch. The bullet hit him, instead, in his upper right ear.

The bullet killed firefighter, father and husband Corey Comperatore as he protected his family from the shots, and severely injured two others.

Cheatle admitted under oath that the Secret Service “on July 13th, we failed.”

“As the director of the United States Secret Service, I take full responsibility for any security lapse of our agency,” she said. “We must learn what happened and I will move heaven and earth to ensure that an incident like July 13th does not happen again.”

Cheatle added: “Our agents, officers and support personnel understand that every day we are expected to sacrifice our lives to execute a no fail mission.”

House Republicans, including House Oversight Committee Chairman James Comer, had been calling on Cheatle to resign, calling her and the agency under her watch “the face of incompetence.”

“It is my firm belief, Director Cheatle, that you should resign,” Comer said during the hearing. “The safety of Secret Service protectees is not based on their political affiliation. And the bottom line is that under Director Cheatle’s leadership, we question whether anyone is safe.”