Donald Trump has branded America's foremost virus expert a "disaster" in a phone call with supporters.
And he said people are "tired" of hearing about coronavirus.
The President assured campaign workers he still has a pathway to win on election day, despite Joe Biden's soaring poll lead.
Speaking from his signature hotel in Las Vegas, Nevada, before leave for two rallies in Arizona, Trump took his frustration out on coronavirus expert Anthony Fauci midway through a call intended to buck up his national team of campaign workers.
Trump and Fauci, a member of his coronavirus task force, have been at odds over how best to handle a pandemic that has killed more than 219,000 people in the United States and weakened the president's bid for re-election on Nov. 3.
Fauci openly complained about being cited in a Trump re-election campaign ad and said in an interview broadcast on Sunday night by CBS' "60 Minutes" that he was not surprised that Trump himself contracted the virus.
Trump, whose rallies include many supporters not wearing masks and standing shoulder to shoulder, said Americans were fed up with pandemic restrictions. The campaign allowed reporters to listen to the call.
"People are saying, 'Whatever. Just leave us alone.' They're tired of it. People are tired of hearing Fauci and all these idiots...Fauci is a nice guy. He's been here for 500 years," Trump said.
Trump suggested he had avoided firing Fauci because of the negative blowback he would receive.
Fauci, 79, is one of the most respected scientists in the United States and has served under Republican and Democratic presidents. He has been director of the National Institute of Allergy and Infectious Diseases since 1984.
"Fauci is a disaster. If I listened to him, we'd have 500,000 deaths," Trump added.
