Attorney General nominee William Barr told senators that President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE has not asked him about his views on 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's probe.

Barr — in written answers to senators’ questions that were released Monday — said that throughout his talks with the White House during the nomination process there had been "no discussion of the substance" of the investigation.

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"The President has not asked me my views about any aspect of the investigation, and he has not asked me about what I would do about anything in the investigation," Barr added in response to a question from Senate Judiciary Committee member Patrick Leahy Patrick Joseph LeahyBattle over timing complicates Democratic shutdown strategy Hillicon Valley: Russia 'amplifying' concerns around mail-in voting to undermine election | Facebook and Twitter take steps to limit Trump remarks on voting | Facebook to block political ads ahead of election Top Democrats press Trump to sanction Russian individuals over 2020 election interference efforts MORE (D-Vt.) on the probe into Russia's interference in the 2016 presidential election.

The fate of Mueller's investigation has loomed over Barr's nomination. If confirmed, Barr, who previously served as attorney general to President George H.W. Bush, would have oversight of the probe, which has been a frequent punching bag for Trump.

He told senators during his confirmation hearing earlier this month that he would let Mueller's probe continue and that Trump had not asked him, if confirmed, to fire Mueller or interfere with his investigation.

Barr added during the hearing that the president had asked, during a "brief meeting" in 2017, about "how well" the former attorney general knew Mueller.

"I told him how well I knew Bob Mueller and our — and how, you know, the Barrs and Muellers were good friends and would be good friends when this is all over, and so forth. And he was interested in that, wanted to know, you know, what I thought about Mueller's integrity and so forth and so on," Barr told senators during his confirmation hearing earlier this month.

Barr added in his written response to senators that Trump also used the meeting to reiterate "his public statements denying collusion and describing the allegations as politically motivated. I did not respond to those comments."

The written responses from Barr come as his nomination will go before the Judiciary Committee on Tuesday, though a vote is expected to be delayed until next week.

No Democratic senator has said they will support Trump's pick. But Barr is expected to easily clear the committee, where Republicans have a two-seat advantage over Democrats.