The lawyer for porn star Stormy Daniels said Friday that he believes he can prove that President Trump knew that his personal lawyer paid hush money to Daniels.

Attorney Michael Avenatti told CNN that it was important for the American people to know the details of Daniels’ affair with the president because “cover-ups matter.”

“Meaning what?” anchor Chris Cuomo asked. “What’s the cover-up?”

“The cover-up is that you have attorney [Michael] Cohen claiming that Donald Trump never knew anything about this. You have the White House claiming that Donald Trump never knew anything about this,” Avenatti said. “That’s going to be shown to be patently false.”

Daniels filed a lawsuit against the president this week seeking to void a nondisclosure agreement she signed in the final days of the 2016 presidential election because Trump never signed the document.

The person with whom she had an affair is referred to in the agreement by the alias “David Dennison,” who is actually Trump, Avenatti has said.

Cohen has said he paid the adult film actress $130,000 out of his own pocket to remain mum about the affair in October 2016.

When Cuomo expressed skepticism that Avenatti had evidence of a cover-up, the lawyer said: “We have substantial evidence and facts that were not included in the complaint.

“We’re not going to lay all of our cards out on the table … when that evidence and those facts come to light, the American people are going to conclude that attorney Cohen and the White House have not shot straight with them on this issue,” he said.

White House spokeswoman Sarah Huckabee Sanders has denied the affair, but incurred Trump’s ire when she told reporters Wednesday that an arbitration was won “in the president’s favor.”

She admitted, in effect, that the nondisclosure agreement exists, and that it directly involves Trump.