Federal law enforcement authorities searched President Joe Biden’s Washington think tank in the weeks after the president’s attorneys reported finding classified documents there on Nov. 2.

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(AP Photo/Manuel Balce Ceneta)

The search was conducted with Biden's cooperation and did not require a search warrant, according to CBS News. The outlet said it was not clear whether the FBI found additional documents.

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The Penn Biden Center for Diplomacy and Global Engagement has come under scrutiny amid questions about Biden's possible mishandling of classified information while out of office.