The US Justice Department is asking a Florida court to unseal the warrant that let FBI agents search former President Donald Trump’s home.
If granted, the request would make the documents available to the public.
Attorney General Merrick Garland also revealed he personally approved the warrant, which was executed at Mr Trump’s Mar-a-Lago property on Monday.
The Justice Department has so far not revealed the reason for the search – but the unsealed warrant could.
Mr Trump has until Friday to object to the unsealing – or could release details of the warrant himself.
Monday’s FBI search is believed to be connected to an investigation into whether the former president removed classified records and sensitive material from the White House.