The Justice Department is expected to present a possible criminal case and seek a grand jury indictment against former national security adviser John Bolton as soon as Thursday afternoon at a federal courthouse in Greenbelt, Maryland, according to two sources familiar with the matter.

In August, the FBI searched Bolton's home and office as part of an investigation into his handling of classified documents, sources told CBS News at the time. According to unsealed court papers, agents found records marked classified during the searches. The FBI said it found numerous confidential documents in Bolton's home and office, and the bureau took phones, hard drives and computers as part of the search, the court filings show.

Bolton served as national security adviser during Mr. Trump's first t

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