The Justice Department gave Republicans the transcript of Robert Hur’s interview with Joe Biden, but now they want the audio.

House Republicans are threatening to hold U.S. Attorney General Merrick Garland in contempt of Congress if he doesn’t hand over material from the Justice Department’s recent investigation of President Joe Biden.

In a letter to Garland on Monday, House Oversight Committee chair James Comer (R-Ky.) and Judiciary Committee chair Jim Jordan (R-Ohio) demanded the Justice Department hand over audio of former special counsel Robert Hur interviewing Biden about his mishandling of classified documents.

“If you fail to do so, the Committees will consider taking further action, such as the invocation of contempt of Congress proceedings,” the letter says.