Before prosecutors obtained a search warrant, Trump's lawyers claimed that all of the records from the White House that remained at Mar-a-Lago were in a secure storage room on the premises.
But the filing said documents were likely "concealed and removed from the Storage Room and that efforts were likely taken to obstruct the government’s investigation."
The warrant was obtained after "the government developed evidence that a search limited to the Storage Room would not have uncovered all the classified documents at the Premises."