Trump critic also expected to appear in court to face charges that he mishandled classified information

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John Bolton, the former national security adviser to Donald Trump who has since become one of the US president’s biggest Republican critics, surrendered to authorities on Friday to face criminal charges that he mishandled classified information. He was expected to make an initial appearance in court later in the day.

The justice department filed federal charges against Bolton in federal court in Maryland on Thursday, accusing him of transmitting and retaining highly classified information under the Espionage Act.