Getty Images
Now playing
01:50
Daniels' lawyer: She wants to speak her truth
Trump Stormy Daniels not changed story new_00000000.jpg
Trump Stormy Daniels not changed story new_00000000.jpg
Now playing
00:54
Trump gets testy with reporter over porn star
ABC
Now playing
02:51
Stormy Daniels releases sketch
Photo Illustration: Getty/Shutterstock/CNNMoney
Now playing
03:39
Stormy, Cohen and Trump: What you should know
rudy giuliani tel aviv
Globes
rudy giuliani tel aviv
Now playing
01:00
Giuliani: Melania believes Trump over Daniels
CBS/"60 Minutes"
Now playing
03:06
Stormy Daniels: 'I have no reason to lie'
NBC/Broadway Video
Now playing
01:11
Stormy Daniels taunts Trump on 'SNL'
playboy karen mcdougal trump amorio maestra preescolar playmate acuerdo ami digital pkg_00000511.jpg
Karen McDougal / Getty Images
playboy karen mcdougal trump amorio maestra preescolar playmate acuerdo ami digital pkg_00000511.jpg
Now playing
01:20
Karen McDougal: Preschool teacher turned Playboy model
trump time magazine cover
CNN
trump time magazine cover
Now playing
01:52
TIME cover shows Trump in 'Stormy' conditions
photo illustration/cbs/getty images
Now playing
05:07
NYT: FBI searched for porn star, playmate payment records
CNN
Now playing
02:51
The cases that bind Cohen, Davidson
Now playing
01:45
McDougal appears in photo with Trump family
Pool
Now playing
00:49
Trump: No knowledge of Stormy Daniels payment
MIAMI BEACH, FL - FEBRUARY 06: Karen McDougal attends Playboy's Super Saturday Night Party at Sagamore Hotel on February 6, 2010 in Miami Beach, Florida. (Photo by Dimitrios Kambouris/Getty Images for Playboy)
Getty Images
MIAMI BEACH, FL - FEBRUARY 06: Karen McDougal attends Playboy's Super Saturday Night Party at Sagamore Hotel on February 6, 2010 in Miami Beach, Florida. (Photo by Dimitrios Kambouris/Getty Images for Playboy)
Now playing
02:53
Karen McDougal and the 'catch and kill' system
Stormy Daniels taking a polygraph exam in 2011.
Courtesy Michael Avenatti
Stormy Daniels taking a polygraph exam in 2011.
Now playing
02:58
Polygraph: Stormy Daniels truthful about Trump
LAS VEGAS, NV - FEBRUARY 04:  Adult film actress/director Stormy Daniels hosts a Super Bowl party at Sapphire Las Vegas Gentlemen's Club on February 4, 2018 in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images)
Ethan Miller/Getty Images
LAS VEGAS, NV - FEBRUARY 04: Adult film actress/director Stormy Daniels hosts a Super Bowl party at Sapphire Las Vegas Gentlemen's Club on February 4, 2018 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
Now playing
01:58
The president and the porn star
(CNN) —  

The attorney for porn star Stormy Daniels, who’s suing President Donald Trump, said Friday that the American people need to hear from his client “because cover-ups matter.”

Daniels, whose legal name is Stephanie Clifford, filed suit against Trump on Tuesday, alleging that he never signed a hush agreement regarding an alleged sexual encounter between the two and therefore the agreement is void.

White House press secretary Sarah Sanders said Wednesday that “arbitration was won in the President’s favor” regarding the case. The statement is an admission that the nondisclosure agreement exists and that it directly involves Trump. It was the first time the White House had admitted the President was involved in any way with Clifford.

Trump’s personal lawyer, Michael Cohen, said last month that he paid $130,000 of his own money to Clifford right before the 2016 election in exchange for her silence about the matter. But both Cohen and the White House have denied any sexual encounter between the President and Clifford.

“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 Donald Trump never knew anything about this. That is going to be shown to be patently false,” Michael Avenatti, the attorney for Daniels, said in an interview Friday on CNN’s “New Day.”

Avenatti said he has further “substantial evidence and facts that were not included in the complaint” to back up his claims, though he said he was “not going to lay all of our cards out on the table” Friday.

“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,” he alleged.

Avenatti said that Daniels would “absolutely” pay back the $130,000 payment if she’s “ultimately ordered to do that to speak openly and honestly” or if Trump and Cohen want to “admit that (Trump) know about the deal and didn’t sign it.”