President Joe Biden addressed the matter of classified documents that were recovered from his private office at the Penn Biden Center for the first time on Tuesday, saying that he was surprised to learn they were there and is cooperating fully with the Justice Department's review. "Let me get rid of the easy one first," Biden began in response to a slew of reporter questions at the North American Leaders Summit in Mexico City. "People know I take classified documents and classified information seriously." Biden said his personal attorneys found the classified documents as they were clearing the office. "They...