President Donald Trump took to Twitter late Thursday to proclaim that he never gave any access to Michael Wolff for his book which hits stores Friday.

Wolff was able to conduct over 200 interviews with those in the White House and close to Trump by sitting on couches in the West Wing and at a hotel across the street.

“I authorized Zero access to White House (actually turned him down many times) for author of phony book!” Trump tweeted. “I never spoke to him for book. Full of lies, misrepresentations and sources that don’t exist. Look at this guy’s past and watch what happens to him and Sloppy Steve!” An apparently reference to Steve Bannon.

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I authorized Zero access to White House (actually turned him down many times) for author of phony book! I never spoke to him for book. Full of lies, misrepresentations and sources that don’t exist. Look at this guy’s past and watch what happens to him and Sloppy Steve! — Donald J. Trump (@realDonaldTrump) January 5, 2018

The latest attack is part of a long and very public breakup between the previous allies.

Trump’s tweet could be an attempt at a pre-emptive strike to justify litigation. If Trump authorized the White House staff to speak to Wolff, non-disclosure agreements he requires the staff to sign, wouldn’t be valid because he gave consent. Trump has sent cease and desist letters to both Wolf and Bannon while the White House has gone in full attack mode. Trump is threatening a libel lawsuit, but in all of his threats for libel, Trump has never once actually sued.