House Judiciary Committee Chairman Jerrold Nadler continued to claim Sunday that special counsel Robert Mueller would have charged President Trump with obstruction of justice, had not the Department of Justice kept him from doing so.

Arguing the case for impeachment during an interview with Jake Tapper, Nadler maintained that Mueller was restrained only by the Justice Department’s Office of Legal Counsel opinion that a sitting president cannot be indicted. Mueller publicly walked back such a claim while speaking in front of Congress on Wednesday.