Donald Trump has claimed the first presidential debate next week will be "unfair."
Mr Trump said in a radio interview that veteran moderator Chris Wallace was “controlled by the radical left” and would not ask Joe Biden tough questions.
“Chris is good, but I would be willing to bet that he won’t ask Biden tough questions,” the president told Brian Kilmeade on Fox News Radio.
“He will ask tough questions of me and it will be unfair, I have no doubt about it. He will be controlled by the radical left.”
Trump insisted he had “a lot of respect” for Wallace and a good relationship with his father, Mike Wallace.
Mr Kilmeade was quick to push back against Mr Trump’s accusations about his Fox News colleague.
“Mr President, I will tell you for sure, he is not controlled by anyone,” said Mr Kilmeade.
“We’ll see. Then he’s got to ask tough questions of Biden,” Trump said.
Mr Wallace will moderate the first presidential debate in Cleveland, Ohio, on Tuesday.
Both candidates will be asked questions on their records, the coronavirus, the Supreme Court, the economy, race and violence in US cities, and election integrity.
Trump appeared to try and lower expectations of his performance, insisting that Mr Biden had a significant advantage.
“No, I think I am the one without experience. I have just been doing this for a few years. He has been doing this for 47 years plus,” said Mr Trump.
“I mean, he has a tremendous advantageous really, if you think about it, but I have a much better record than he does.”
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