President Trump on Thursday said he hopes U.S. Attorney John Durham, who is investigating the origins of the Russia probe, is "not going to be politically correct" and warned that Attorney General William Barr could go down as "the greatest attorney general" or just "an average guy" — depending on what comes out of the monthslong probe.During an exclusive interview with FOX Business' Maria Bartiromo, the president was asked about the Durham probe, which the Justice Department has said could yield some results by next month.

"I hope he's doing a great job, and I hope they're not going to be politically correct," Trump said. "Obama knew everything. Vice President Biden, as dumb as he may be, knew everything, and everybody else knew."

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