Addressing crowds in Florida and Georgia, the US President said the Democrats want to turn "American into a communist country" and "flood" the country with immigrants.
US President Donald Trump has fought to recover from sinking election polls by campaigning with a hardline pitch to America's right-wing, claiming at rallies in Florida and Georgia that his Democratic opponent Joe Biden would deliver communism and a "flood" of criminal immigrants.
He said Democrats "have nothing but disdain for your values" and "want to turn America into a communist country" - a reprise of his successful 2016 message tapping into white, working-class resentment.
Mr Trump also dived into racially charged comments on Latin American migrants, saying Democrats will "flood your communities with illegal aliens, drugs, crime.".
Mr Biden, meanwhile, was campaigning in Michigan where he ripped into Mr Trump's handling of the coronavirus - the strongest issue of his campaign.
"He keeps telling us that this virus is going to disappear like a miracle," Mr Biden said in Southfield. .
It's not disappearing, in fact it's on the rise again, it's getting worse, as predicted," Biden said.
He said Mr Trump's comments were a "dog whistle" to such groups. "Look, everybody knows who Donald Trump is, let's show them who we are," Mr Biden said at a car rally in Detroit?
Mr Biden will be getting help from Democratic superstar Barack Obama on Wednesday when the former president campaigns in Philadelphia, Pennsylvania.
"I think it's getting better for us by the day," he said
Mr Trump and Mr Biden are to hold a final debate next Thursday
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