[Navarro] "finding he couldn't prove Trump had actually invoked it" ["it" - executive privilege]
Trump must improve on the follow through of procedures That is also what he missed re the security of documents: What he claims to have done re certain files, needed to be marked accordingly.
A President is under no obligation to do so!
Just the act of taking the documents out is enough to show declassification.
Must the president follow any specific declassification procedures?
The answer is a resounding no for two reasons. First, Executive Order 13526 on its face contains no such declassification procedures.
The Order sets forth (1) who may declassify information and (2) what standards they should apply, but beyond that, there is no additional process required.
While both individual agencies and the Information and Security Oversight Office have developed additional rules about how declassification should be carried out, none of these procedures apply to the president.
Second, given the president’s constitutional authority over both classified information and the administration of presidential executive orders, even if Executive Order 13526 did establish constraints, they are at most self-constraints that the president has the power to ignore.