Secret Service director says 'buck stops with me' on Trump assassination attempt but won't resign

Addressing the attempted assassination of former President Donald Trump at a Pennsylvania rally on Saturday, U.S. Secret Service Director Kimberly Cheatle said the "buck stops with me" but refused to resign.

“It was unacceptable,” Kimberly Cheatle told ABC News in an exclusive interview on Monday. “And it’s something that shouldn’t happen again.”

She said the incident was "obviously a situation that as a Secret Service agent, no one ever wants to occur in their career."

The gunman fired on Trump from a nearby rooftop and a bullet hit the former president's ear. A rally attendee, Corey Comperatore, was killed while shielding his family from the bullets and two others were critically injured. 

Cheatle maintained that she doesn't plan to step down.

"The buck stops with me. I am the director of the Secret Service, and I need to make sure that we are performing a review and that we are giving resources to our personnel as necessary," she said.

Cheatle revealed that she has reached out to Trump personally about the incident but hasn't heard back yet.