Special counsel Robert Mueller is resisting House Democrats’ desire for public testimony on his views about President Trump and Attorney General William Barr, reports the Washington Post.

So far, the two sides “have been unable to reach an agreement on how much of the special counsel’s expected congressional testimony would be public, and how much would take place in private, according to people familiar with the matter,” says the Post.

Mueller’s office has been “quietly negotiating” about testimony before the House Judiciary Committee.

“Democrats want to press Mueller in a nationally televised hearing about a host of issues, including whether he thought President Trump could or should be charged with obstruction if he were not the president, and whether Mueller agreed with … Barr’s handling of the investigation’s findings,” the Post says.

The attorney general released a partly redacted version of the special counsel’s 448-report last month and the Democrats want the public to learn as much as possible about his findings.

But — again citing unnamed sources — the Post says Mueller “would like for any discussions beyond the public contents of his report to be conducted in private.”