The investigation into Bolton, who served for more than a year in President Trump's first administration before being fired in 2019, burst into public view in August when the FBI searched his home in Maryland and his office in Washington.

John Bolton, the national security hawk and former adviser to Donald Trump who has become one of the U.S. president's biggest critics, pleaded not guilty on Friday to charges of mishandling classifie...

The indictment alleges that Mr Bolton shared sensitive information with two of his relatives for possible use in a book he was writing, including notes on intelligence briefings and meetings with seni...