Attorney General Bill Barr still thinks special counsel Robert Mueller should testify in front of Congress, according to ABC News.

Despite President Donald Trump’s vocal opposition to a potential Mueller hearing, a source “familiar with the attorney general’s thinking” told ABC on Monday that Barr hasn’t been swayed from his support for such a hearing.

During his Senate Judiciary hearing last week, Barr said that he had “no objection” to Mueller testifying about his Russia probe.

His position stands in direct contrast to that of Trump, who furiously tweeted on Sunday that “Bob Mueller should not testify. No redo for the Dems!”

The Democrat-led House Judiciary Committee hopes to have Mueller testify on May 15. The GOP-led Senate Judiciary Committee has also invited the special counsel to testify, though the scope of his potential Senate hearing aims to be much more narrow.