If you listen to Michael Avenatti’s opponents, the attorney for Stormy Daniels is a fame-seeking extortionist without any case.

“Michael Avenatti is in it for all the press and money,” Michael Cohen’s attorney, David Schwartz, said last month during an interview with Good Morning America. Avenatti’s case is “completely wrong on the merits,” Schwartz added to the Los Angeles Times in an interview published on Saturday.

On Sunday, Avenatti issued a powerful rebuke to these criticisms in the form of a 27-page legal filing that requests the chance to depose both President Donald Trump and Cohen as part of Daniels’ lawsuit against them.

As I’ve reported, Daniels’ legal challenge to a contract made with Cohen’s Essential Consultants LLC for her to stay quiet about an alleged affair with Trump is stunningly strong. Her case rests on the claim that Trump never agreed to the deal, which would mean the contract was never actually formed. Trump’s lack of signature on the contract and his own statements, as well as those of his representatives in the White House and those of Cohen, support that very argument.

In Sunday’s memorandum of points accompanying his motion for a jury trial and limited discovery, Avenatti effectively used Trump’s and his surrogates’ own words against them.

Exhibit C as part of the motion are statements the president issued on Thursday denying that he had any knowledge of the agreement. As I pointed out then, and as Avenatti hammers home in his filing, how could Trump have agreed to the essential terms of the contract forswearing his right to contact or sue Daniels if he hadn’t been aware of its existence? “[B]y failing to sign the Agreement, Mr. Trump failed to supply essential consideration to Plaintiff in the form of a release, covenant not to sue, and representations and warranties,” Avenatti notes.

“[I]f Mr. Trump was completely unaware of Mr. Cohen’s actions, the question naturally arises as to how it would be possible for a ‘meeting of the minds’ to have occurred between parties where one of the parties does not even know about the existence of the agreement?” the filing continues.

Avenatti goes on to argue that Cohen’s motion to compel arbitration per the terms of the contract is moot until this fundamental question of Trump’s knowledge of the agreement can be sorted out via limited discovery, including depositions of the president and Cohen. He also cites previous cases where arbitration agreements have been nullified because courts have determined that a contract was never formed.

Again, this argument is incredibly solid. As Loyola Law School professor and arbitration expert Adam Zimmerman told me over email:

Avenatti’s argument that the Court set aside the arbitration agreement is well-grounded in federal arbitration law. … [C]ourts generally determine questions about whether an arbitration agreement was initially formed at all. That should make sense, as a general principle, too. If someone never even signed an agreement to arbitrate, for example, what business does some random person have deciding rights between total strangers. That’s what Avenatti argues here: that there’s a genuine factual dispute over whether one of the critical parties to this agreement–in this case, President Trump–ever agreed to be bound by arbitration. In such cases, the Federal Arbitration Act provides for a summary jury proceeding to decide whether a contract exists. And accordingly, Avenatti is pursuing limited factual discovery to that end.

While this argument alone should get him out of arbitration for the time being, Avenatti added an additional novel and clever argument.

Avenatti says that the arbitration clause itself is a mechanism to avoid federal campaign laws by whoever paid Daniels $130,000 for her silence.

“Plaintiff intends to prove the arbitration clause was entered with the purpose of keeping facts concerning federal campaign contributions and expenditures secret and hidden from public view by using a confidential arbitration proceeding in violation of FECA’s mandates to publicly report campaign contributions and expenditures,” Avenatti writes.

If the arbitration clause itself was formed for an illegal purpose, it might be considered invalid.

“Ordinarily, [moving to set aside an arbitration agreement on the ground that it is simply illegal is] a tough hurdle to overcome,” Zimmerman told me. “But here, the parties distinguish [recent] case law by arguing the arbitration agreement itself violates federal law, not just the entire contract.”

As Zimmerman also notes, Avenatti cites “well-established contract law that generally find political contracts to suppress information for money as void against public policy.”

The brief directly cites the epochal legal treatise, the Restatement of Contracts, and points out “remarkably” similar circumstances:

A, a candidate for political office, and as such advocating certain principles, had previously written letters to B, taking a contrary position. B is about to publish the letters, and A fearing that the publication will cost him his election, agrees to pay $1000 for the suppression of the letters. The bargain is illegal.

Even if Trump is able to convince a judge that he was actually party to the contract, despite all of the evidence and his statements to the contrary, he could lose on these grounds alone.

“It’s a novel argument, but then again, these are novel circumstances,” Zimmerman said.