GREENBELT, Md. — John Bolton, who once served as national security adviser and is now a critic of former President Trump, turned himself in on Friday morning in response to charges of improperly handling classified information.

Bolton made his way to the federal courthouse in Greenbelt, Maryland, at approximately 8:30 a.m. Accompanied by his legal team, he entered the U.S. Marshal’s office. He is slated to appear in court for the first time later during the day.

The previous day, a federal grand jury indicted Bolton on 18 felony counts. This development marks him as the third prominent adversary of Trump to face charges from the Justice Department in recent months.

According to prosecutors, Bolton shared over a thousand pages of personal, diary-like entries with two relatives, detailing his experiences as Trump’s national security adviser. He allegedly retained these records at his Maryland home after his departure from the role.

In response to the indictment, Bolton issued a statement asserting he is the “latest target” of what he describes as Trump’s vendetta against political opponents. He emphasized his commitment to U.S. foreign policy and national security, declaring that he would “never compromise those objectives.”

His lawyer, prominent Washington attorney Abbe Lowell, said that keeping diaries “is not a crime.”

Lowell also represents New York Attorney General Letitia James (D), another Trump adversary who was charged last week with bank fraud in connection with her purchase of a Virginia home.

Former FBI Director James Comey also faces charges he lied in 2020 congressional testimony.

They both have denied wrongdoing.

Updated at 9:20 a.m. EDT.