Two of the House lawmakers who reviewed the files—Thomas Massie of Kentucky and Ro Khanna of California—said the redactions appeared to include one “high up” foreign government official and other prominent individuals whose names and photographs were obscured in the versions previously released to the public.

“There are six men, some of them with their photographs, that have been redacted, and there’s no explanation why those people were redacted,” Massie, a Republican, said after spending roughly two hours reviewing the documents inside a secure reading room at a Department of Justice satellite office.