Judge Andrew Napolitano said Tuesday he believes attorney general nominee William Barr allayed the concerns of both parties with his answers to senators on the Mueller probe. 

"I will follow the Special Counsel regulations scrupulously and in good faith, and on my watch, Bob will be allowed to complete his work," Barr told the Senate Judiciary Committee.

Barr, who served as attorney general for two years under George H.W. Bush, said he doesn’t believe Mueller would conduct a "witch hunt," as President Trump has repeatedly alleged. He said he has known Mueller “personally and professionally for 30 years,” having previously worked with the former FBI director at the Justice Department.

Barr told senators he finds it "unimaginable" that Mueller would do something that would constitute "good cause" to remove him as special counsel.

Going into the hearing, Barr faced criticism for writing a 19-page unsolicited letter last June to express concern about the Mueller probe to top DOJ officials. 

The judge explained that Barr's memo only touched on one of five potential obstruction of justice statutes as it relates to the President of the United States. He said Barr acknowledged he does not know all the facts that Mueller's team has gathered and his mind could change on the issue once he assumes the role of attorney general. 

"I thought that came across very credibly and in a way that made Republicans and Democrats feel comfortable," said the Fox News senior judicial analyst, calling Barr a "savvy thinker" who came across as the "adult in the room."

Watch the full discussion above from "Outnumbered."

Chaffetz: Dems' 'Fishing Expeditions' of Trump Admin Won't Be 'Productive for the Country'

Judge Nap: 'Sole Issue' in Bill Barr's Confirmation Hearing Is Robert Mueller

Trump Attorney Sekulow: 'Every American Should Be Concerned' Over FBI's Actions