After Carl Icahn bristled at a deposition last month by Wachtell, Lipton, Rosen & Katz that touched on renewable energy policy—a controversial subject due to Icahn’s former adviser role to President Donald Trump—a federal judge on Thursday said there was no basis to terminate it and ordered the activist investor to resume the deposition.

“You don’t just get to terminate on relevance grounds and make additional arguments after the fact,” U.S. District Judge Richard Sullivan of the Southern District of New York told Herbert Beigel, CVR Energy’s attorney.