Trump denies the affair.
Stormy Daniels offered on Monday to pay President Donald Trump $130,000 to buy her way out of a contract that prohibits her from discussing their decade-old alleged affair, the latest jab in a legal and public relations battle surrounding the once-secret agreement.
However, in a letter from Ms Clifford's lawyer, Michael Avenatti, he said his client would wire the money into an account of Mr Trump's choosing by Friday, making the settlement agreement "deemed null and void in their entirety".
The letter is also being sent to Lawrence Rosen, an attorney who has identified himself as representing Cohen, and to EC LLC, a company Cohen formed in connection to the agreement and the payment made to Clifford in October 2016.
Also Monday, the advocacy group Common Cause named Trump and Cohen in amended complaints to the Federal Election Commission and Justice Department that alleged the payment to Clifford violated campaign finance laws. The group claims it is an illegal campaign contribution because of the size and goal of the payment.
By now, that agreement is well known: Porn actress Stephanie Clifford, known professionally as Stormy Daniels, received $130,000 to stay mum about the alleged sexual relationship.
In exchange, she would be permitted to "speak openly and freely about her prior relationship with the President and the attempts to silence her", and use any text messages, photos, videos or other materials in her possession.
Clifford was recently interviewed by Anderson Cooper for "60 Minutes" piece set to air at a future date.
And it would require the agreement be signed by all parties, including the president, who did not put his name to the previous nondisclosure deal.
"If he's been open and honest with the American people, and his attorney Mr. Cohen has truly been open and honest with the American people, then I guess he doesn't have anything to fear from discovery", Avenatti said.
"We've addressed this extensively, and I don't have anything else to add", White House Press Secretary Sarah Huckabee Sanders said last week. It was the first time the White House had admitted the President was involved in any way with Clifford.
Although Clifford has been making public appearances around the country, she's remained silent about the alleged 2006 affair with the president after receiving the hush money from Cohen just before the 2016 US presidential election.