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 cites former top aide Steve Bannon as describing a meeting with a group of Russians as "treasonous".
It also portrays Mr Trump as being surprised at winning the presidency.
Despite the legal threat the book's publishers have brought its release forward.
It was due to be out on Tuesday but the book's author Michael Wolff said the book would now be available for purchase on Friday.
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.