"Fox News Sunday" anchor Chris Wallace says he doesn't think there's a chance President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE will sit for an interview with special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE.

Wallace made the comments Friday while appearing on Shepard Smith's Fox program to preview his sit-down with the president, which is set to air Sunday.

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While Wallace declined to open up about certain parts of the interview, he noted that he asked Trump if there was a chance he'd sit for an interview with Mueller as part of the special counsel's investigation into Russia's election interference.

“I will say this," Wallace remarked. "I don’t think there’s very much chance that he is ever going to sit for an interview with Mueller.”

Wallace said that Trump was very critical of Mueller's investigation during the interview.

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His comments came the same day that Trump told reporters he had finished answering written questions from Mueller's office. Trump noted that he has yet to submit them and did not say when he plans to do so.

The president also added that while he's spent several hours with his lawyers this week, he wrote the answers for Mueller.

Wallace said that Trump makes a big point of emphasizing that he "wrote the questions and then they were edited by the lawyers."

Trump, who has repeatedly referred to Mueller's probe as a "witch hunt," has escalated his criticism of the investigation this week.

On Thursday, the president claimed that members of Mueller's team were "screaming and shouting at people, horribly threatening them to come up with the answers they want."

"They are a disgrace to our Nation and don’t care how many lives the ruin," he said in a series of tweets. "These are Angry People, including the highly conflicted Bob Mueller."

CBS News reported earlier this week that Mueller is expected to issue more indictments in the coming days. In addition, the president's tweets have led some to speculate that an announcement from the special counsel's office is coming soon.

Rep. Ted Lieu Ted W. LieuThe spin on Woodward's tapes reveals the hypocrisy of Democrats Larry Kudlow defends response to coronavirus: Trump 'led wisely' Lieu on Trump 'playing it down' on coronavirus: 'This is reckless homicide' MORE (D-Calif.) said on Twitter that a tweet from the president about Mueller's investigation "leads me to think that more indictments are coming soon."