Harvard Law professor and defense lawyer Alan Dershowitz is said to be helping Hillary Clinton prepare for the first televised debates with Donald Trump next month, according to a report by WNYC.

“The Clinton campaign has been looking for a surrogate to play Trump so she can practice and they are bringing in the well known criminal and constitutional law attorney Alan Dershowitz,” WNYC’s Richard Hake said during an interview with former NYC Public Advocate Mark Green.

Green, a former Dershowitz student, remarked: “Alan Dershowitz is quick-talking, New Yorkish, loud, of course a liberal, and he can mimic Trump pretty well.”

In an email to Jewish Insider, Dershowitz didn’t outright deny the report, but said he is not aware of his role playing Trump. “Not that I’ve heard,” he wrote when asked if he is playing Trump in debate prep for Clinton.

But Dershowitz indicated that he would be ready to help the Democratic presidential nominee prepare for the debates if asked to do so. “I will do everything I reasonably can to see Clinton elected,” he said.

Appearing on CNN’s “State of the Union” Sunday morning program, Clinton’s campaign manager, Robby Mook, said that the right candidate to play the Republican presidential nominee has yet to be found. “It is very hard to find someone to mimic the reckless temperament and hateful instincts of Donald Trump,” Mook told CNN’s Dana Bash. “Preparing for a debate with him is a challenging task. The challenge is finding someone who can recreate the kind of reckless temperament, the kind of hateful language and divisive language that has become Trump’s hallmark, but we will get it done.”

A Washington Post article suggested Sen. Al Franken, former Pennsylvania governor Ed Rendell, former Montana governor Brian Schweitzer, running mate Tim Kaine, and Vice President Joe Biden as possible candidates to prepare Clinton for an unconventional debate with Trump.

The first presidential debate is scheduled to take place on Monday, September 26 at Hofstra University in New York.