Lawyers for US President Donald Trump are seeking to stop the release of a book containing damaging allegations about his administration.
Fire and Fury: Inside the Trump White House is due for release on Tuesday.
It cites former top aide Steve Bannon as describing a meeting with a group of Russians as “treasonous”.
It also questions Mr Trump’s fitness for office, reports his wife was crying on election night and says Ivanka Trump has presidential ambitions.
The White House has disputed the book’s accuracy. Mr Trump earlier said Mr Bannon – who was sacked in August – had “lost his mind” after losing his White House position.
Among a number of explosive statements, Mr Bannon reportedly said, referring to a Trump Tower meeting between top campaign officials and Russia: “They’re going to crack Don Junior like an egg on national TV.”
The meeting, which involved Mr Trump’s eldest child Donald Trump Jr, is being investigated by Special Counsel Robert Mueller as part of his inquiry into possible collusion between Trump campaign officials and Russia to win the election.
Mr Trump strongly denies any collusion took place.