"The Washington Post reports that “some of the White House documents that Donald Trump improperly took to his Mar-a-Lago residence were clearly marked as classified,” including ones that had the words “top secret” on them."
https://www.vanityfair.com/news/2022/02/donald-trump-classified-documents-mar-a-lago
"Last month, the National Archives, the government agency that manages presidential records, noticed that documents were missing from the Trump presidential archives. They found 15 boxes of documents at the former president's Mar-a-Lago home. According to The Washington Post, some of them were clearly marked as classified, including some that were top secret."
https://www.npr.org/2022/02/11/1080049326/top-secret-documents-are-recovered-from-trumps-mar-a-lago-residence
"For the 15 boxes of documents — some classified and marked “top secret” — the long journey from former president Donald Trump’s gilded Mar-a-Lago residence in Palm Beach, Fla., to a secure facility in the Washington area began last summer, when the National Archives and Records Administration contacted Trump’s team to alert it that some high-profile documents from his presidency appeared to be missing."
https://www.msn.com/en-us/news/politics/15-boxes-inside-the-long-strange-trip-of-trump-e2-80-99s-classified-records/ar-AATLTOv
Trump Took “Top Secret” Classified Material to Mar-a-Lago Estate
https://truthout.org/articles/trump-took-top-secret-classified-material-to-mar-a-lago-estate/