Justice Department officials have demanded in recent weeks to former President Donald Trump’s attorneys that he return any outstanding documents marked as classified, making clear they do not believe he has returned all materials taken when he left the White House, a person familiar with the outreach told CNN.The Justice officials – including Jay Bratt, a top lawyer in the Department of Justice’s national security division – have communicated to Trump’s attorneys that he has an ongoing obligation to return the documents marked as classified.Whether the FBI rounded up all of the sensitive federal records in Trump’s possession during its August 8 search of his Florida residence and resort is a question that’s loomed over the situation in recent weeks.For instance, the Justice Department described the need to determine if other classified records still hadn’t been collected, and pointed to the empty envelopes with classified banners that were seized in the August Mar-a-Lago search.After a federal judge blocked investigators from using the seized materials in their criminal investigation, the department said in a court filing last month that the order would “impede efforts to identify the existence of any additional classified records that are not being properly stored – which itself presents the potential for ongoing risk to national security.”Prosecutors also told an appeals court that the judge’s order was preventing the FBI from taking investigative steps that “could lead to identification of other records still missing.”The appeals court ultimately allowed federal criminal investigators and intelligence officials to regain access to about 100 seized documents marked as classified."