A veteran of politics, Joe Biden leads by nine percentage points in the national poll average. But above all, with a narrower margin, in the key states which can switch from one party to another at each election.

To mobilize his supporters, Donald Trump announces him, despite the polls, "a red wave of unprecedented amplitude", in reference to the color of the Republicans.

While the two candidates are to meet Thursday in Nashville for the last presidential debate, the Trump camp has intensified its attacks against Mr. Biden in recent days.

"Joe Biden is a corrupt politician, and everyone knows it," the billionaire said on Twitter on Sunday.

At a meeting on Saturday in Michigan, another crucial state for the election, he called Joe Biden a "criminal" who represented "a risk to national security".

He also attacked the Democratic state governor, Gretchen Whitmer, who imposed severe restrictions to fight the coronavirus pandemic, as the crowd chanted: "Put her in jail."

- "Irresponsible" -

Ms Whitmer, a staunch opponent of the president, was targeted by a far-right group that planned to kidnap her and try her for "treason". The individuals were arrested last week before they could complete their project.

"It's incredibly disturbing" that the president "inspires, encourages and incites this kind of domestic terrorism," Gretchen Whitmer commented on NBC Sunday.

"People are frustrated with this governor and it has nothing to do with this attempted attack against her," Laura Trump, the president's daughter-in-law, said on CNN, assuring that he was doing "absolutely nothing. to get people to threaten "Mrs. Whitmer but that he was" having fun ".

"The president must realize that the words of a president of the United States carry weight," Democratic Speaker of the House of Representatives Nancy Pelosi said on ABC.

"Injecting intimidation tactics into our political dialogue, especially about a woman governor and her family, is so irresponsible," she said.

The former vice president denounced Sunday the much criticized management of the pandemic by the White House, while the United States has more than 8 million positive cases and nearly 220,000 dead.

"Rather than taking responsibility and being a leader, President Trump continues to play down Covid-19," Joe Biden said in a statement. "Donald Trump did not take the necessary precautions to protect himself and others. Can he be trusted to protect families in Nevada?" He added.

The US president, who has always been reluctant to wear a mask, was hospitalized three nights after contracting the virus in early October. He has since resumed his campaign at a run, claiming to be immune.

On Sunday, he defended his widespread testing program. “The more you test, the more positive cases you find. Very simple!” He said on Twitter.