U.S. Attorney General Merrick Garland announced Thursday he was appointing Robert Hur to serve as a special counsel to review classified material found in President Joe Biden’s Delaware residence and a Washington office he used.

Hur, now a lawyer at a Washington, D.C., firm, was the U.S. Attorney for Maryland during the Trump administration, and is also the former principal counselor to former Deputy Attorney General Rod Rosenstein, who oversaw the Mueller investigation.

Garland said Hur’s appointment “authorizes him to investigate whether any person or entity violated the law in connection with this matter.”

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