President Trump is vowing to sue the Wall Street Journal and owner Rupert Murdoch over the outlet’s bombshell story detailing a 2003 birthday letter to Jeffrey Epstein bearing Trump’s name and a drawing of a naked woman.

“I told Rupert Murdoch it was a Scam, that he shouldn’t print this Fake Story. But he did, and now I’m going to sue his ass off, and that of his third rate newspaper,” Trump wrote on Truth Social.

Trump has a long history of legal threats against news outlets, and doesn’t always follow through with actual lawsuits. In this case, he did not specify what exactly he’d sue the newspaper for, though his camp referenced “defamatory lies.”

But the mere threat of a lawsuit opened a new chapter in the operatic relationship between Trump and Murdoch, the 93-year-old patriarch who controls the Journal, Fox News and other conservative media brands.

A spokesperson for the Journal declined to comment on Trump’s threat or on the assertion that he directly spoke with Murdoch before publication.