Key detail undermines argument Trump declassified documents found at Mar-a-Lago - Raw Story - Celebrating 18 Years of Independent Journalism

"Strictly speaking, even if Trump ordered the declassification of the records (verbally or in writing), what is likely to matter for purposes of handling and storing the records after he left the White House was if the mandatory follow-on actions occurred. Classified documents have classification markings in the header and footer of each page, indicating the level of classification for the document as a whole," they noted. "If Trump did in fact order the declassification, he still needed to make sure his staff took the necessary next steps to modify the classification markings on the documents before he could actually handle and store the records (as a private citizen) as if they were unclassified. Under security classification rules, a classification marking on a document has to be treated as valid and binding unless and until a subsequent marking replaces it. Appropriate government staffers would have needed to cross out the classification markings in the headers and footers, and stamped 'declassified' on the record noting when it was declassified, by whom and under what authority. Since that does not appear to have been done with the classified documents reportedly identified to date, the documents remain classified and had to be treated as classified for handling and storage purposes."

https://www.rawstory.com/trump-declassified/