Michael Avenatti, the lawyer representing adult film star Stephanie Clifford also known as Stormy Daniels, on Thursday tweeted out an image of a CD disk with a warning to the president in preparation for his clients big interview with 60 Minutes airing on Sunday night.

“If a picture is worth a thousand words, how many words is this worth???? #60minutes #pleasedenyit #basta,” the tweet read. Avenatti told CNN’s Wolf Blitzer that the disk contains evidence that would prove his clients claims about her alleged interactions with Donald Trump prior to him running for President of the United States.

“I want to be really clear about this: It is a warning shot. And it’s a warning shot to Michael Cohen and anyone else associated with President Trump that they better be very, very careful after Sunday night relating to what they say about my client and what spin or lies they attempt to tell the American people,” Avenatti said.

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Avenatti and Daniels are currently suing the president over a nondisclosure agreement they argue is void since the president himself never actually signed the document. The filing also describes the affair she and Trump were allegedly engaged in around the time that his current wife Melania had given birth to the couple’s first son.

CBS’s 60 Minutes is set to air an interview with Clifford on Sunday.