Updated: April 29, 2019 / 7:31 PM

On Monday, Jerrold Nadler, the U.S. House Judiciary Committee Chairman said that Attorney General William Barr must testify before his panel on Thursday, despite his reported objections to the format for questions that Democrats intend to use.

“We’ve been very clear. Barr has to come. He has to testify. It’s none of the business of a witness to try to dictate to a congressional committee what our procedures for questioning him are,” Nadler said to reporters.

“He is supposed to show up on Thursday, and we will take whatever action we have to take if he doesn’t,” he added.

The Justice Department officials had no comment regarding the lawmaker’s remarks.

On Sunday, a Democratic congressional aide mentioned that Barr could skip the upcoming hearing because he is objecting to plans for an extra hour of questioning by both the lawmakers and committee attorneys in a closed session to discuss classified segments of U.S. Special Counsel Robert Mueller’s Russia investigation report.

Nadler has subpoenaed the detailed report on Muller, and the Justice Department faces a strict deadline which will expire on Wednesday at 10 a.m. EDT (1400 GMT) to provide the full document.