Donald Trump told supporters Monday he is “not a Nazi,” using a rally in the final week of a bitter White House race to push back on accusations of authoritarianism, including from a former chief of staff who branded him a fascist.

As he and rival Kamala Harris entered the final stretch of one of the closest US presidential elections in modern times, each candidate and their teams have ramped up the political rhetoric, bringing an already simmering campaign to a boil.

Democrat Harris, who has accused Trump of stoking divisions, was crisscrossing Michigan on Monday while Republican Trump headed to Georgia, another of the decisive swing states, where he said critics are accusing him of being a modern-day “Hitler.”

“The newest line from Kamala and her campaign is that everyone who isn’t voting for her is a Nazi,” Trump told a boisterous rally in Atlanta, while calling Harris a “fascist.”

“I’m not a Nazi. I’m the opposite of a Nazi.”

The comments come a day after Trump held a mega-rally in New York’s famed Madison Square Garden that was widely condemned for racist remarks that his allies made during the event.