U.S. attorney reviewing documents marked classified from Joe Biden's vice presidency found at Biden think tank

Attorney General Merrick Garland has assigned the U.S. attorney in Chicago to review documents marked classified that were found at the Penn Biden Center for Diplomacy and Global Engagement in Washington, two sources with knowledge of the inquiry told CBS News. The roughly 10 documents are from President Biden's vice-presidential office at the center, the sources said. CBS News has learned the FBI is also involved in the U.S. attorney's inquiry.

The material was identified by personal attorneys for Mr. Biden on Nov. 2, just before the midterm elections, Richard...