White House deputy press secretary TJ Ducklo has resigned, a day after being suspended without pay for allegedly threatening a female reporter.
Mr Ducklo had reportedly said he would “destroy” Politico journalist Tara Palmeri who was asking questions about his private life.
In a statement on Saturday, Mr Ducklo said his language had been “abhorrent”.
President Joe Biden has vowed to fire anyone in his administration who treats “another colleague with disrespect”
In the statement posted on Twitter, Mr Ducklo, 32, wrote: “No words can express my regret, my embarrassment and my disgust for my behaviour.”
“I used language that no woman should ever have to hear from anyone, especially in a situation where she was just trying to do her job. It was language that was abhorrent, disrespectful and unacceptable.
“I am devastated to have embarrassed and disappointed my White House colleagues and President Biden, and after a discussion with White House communications leadership tonight, I resigned my position.”
Mr Ducklo said “this incident is not representative of me I am as a person”, adding that he was determined “to earn back the trust of everyone I have let down because of my intolerable actions”.
Ms Palmeri has so far made no public comments on the latest developments.