U.S. President Donald Trump said in a telephone interview with Fox News on The 11th that he no longer carries the new coronavirus and is immune to the virus and can re-engage in campaign rallies. Biden, on the other hand, is on the verge of building momentum in key swing state Ohio, where the two are expected to compete fiercely in several swing states. Biden, on the other hand, is actively attacking the pool. He will visit the swing state of Ohio on the 12th, first to Givedo to give a speech, and then to Cincinnati for a voter mobilization. In addition, Biden has increased his advertising campaign in Ohio.

Just 10 days after the new crown was confirmed, Mr. Trump, eager to "catch up," resumed his campaign rally

On the same day, to the cheers of the audience, Mr. Trump walked out of the White House with his fists raised and his mask removed. "I feel good." Trump said in his speech. The Wall Street Journal says Mr. Trump sometimes appeared breathless in videos and brief appearances recorded earlier this week, but he looked much better during Saturday's nearly 20-minute speech.

However, outside medical experts questioned whether Mr. Trump had followed the segregation rules and warned that such an inappropriate and rapid return to public places could endanger Mr. Trump's own health and put others at risk of infection.

Experts question: Is it "negative"? Whether to comply with the isolation rules

Sean Conley, the White House's presidential doctor, said in a memo Saturday night that Mr. Trump was no longer considered a risk of infection, but he did not say whether Mr. Trump's virus tests were still positive. Conley said diagnostic tests showed "no evidence of active virus replication." "

Conley also wrote in a statement: "I am pleased to report that, in addition to meeting the CDC's standards for safe suspension of quarantine, this morning's new coronavirus PCR test shows that, by current acceptable standards, he is no longer at risk of transmission to others." "

Still, the White House has not answered the central question about Trump's health. CNN News noted that some experts questioned Conley's wording because in the report, Conley did not explicitly state that Trump's test results were "negative" but merely indicated that viral load was declining, but still seemed detectable.

Another concern for experts is when was the last test negative for Mr. Trump before he was diagnosed on October 1? When did he begin to show symptoms?

According to guidelines from the U.S. Centers for Disease Control and Prevention, new infections can be quarantined 10 days after symptoms appear, but only if they do not have a fever within 24 hours and other symptoms improve, CNN News reported. By that measure, Mr. Trump will begin to show symptoms by September 30 at the latest.

But according to CDC guidelines, more serious infections can be contagious for up to 20 days. Experts say the White House has not informed Mr. Trump of the severity of his illness, making it difficult to estimate how long he should be quarantined. But Mr. Trump received treatment for the seriously ill after being hospitalized on The 2nd, suggesting that he may need to be quarantined until October 21.

Adam Schiff, a veteran Democrat, called Mr. Trump's "other super-communications rally" at the White House "morally deseed."

He is eager to "catch up" and will attend campaign events in three states next week

Saturday's White House event not only worried medical experts, but also drew a lot of criticism. Officials declared it a "peaceful protest," but the event actually looked more like a Trump campaign rally, BBC News reported.

In response, the BBC commented that it was a sign that Mr Trump had officially declared "I'm back." With just weeks to go until the election, he is eager to make up for lost time and restart a campaign that has stalled since his diagnosis on January 1.

The New York Times reported that Mr. Trump's advisers wanted to postpone their return to the campaign, but for days Mr. Trump had been pressuring them to resume the campaign as soon as possible, and Saturday's White House event was a compromise for advisers.

Mr. Trump is understood to have "urgently" re-engaged in the campaign. His campaign says a major campaign rally will be held in Florida next Monday, followed by rallies in Pennsylvania and Iowa.

Mr. Trump's lengthy speech to the public has also raised widespread concerns that he is back in public so soon after the infection. In addition to potentially threatening those attending the event, they said, Mr. Trump would accompany aides, advisers and Secret Service agents, who usually do not wear masks. Experts say this means the group is at high risk of infection.

CNN News said in an commentary that there was an opportunity for a strategic transition after Mr. Trump be infected with the new crown virus, which would help his declining approval ratings in dealing with the new crown outbreak. Earlier, Mr. Trump said he had learned a lot about the new coronavirus while hospitalized at Walter Reed National Military Medical Center, and that he could have chosen a responsible path - using his platform to educate the public about the risks of the new coronavirus at a time when the U.S. case surge and doctors are warning that the nation is entering a second wave of outbreaks.

However, nine days after Mr. Trump announced his diagnosis, he opted for a habitual set of denials, adventures and tactics, and two weeks after an event in the White House Rose Garden that led to a super-spread event, he held another event on the South Lawn that had no social distance. "Our rallies and everything we do will start on a very large scale," Mr. Trump said at Saturday's event. But once again, he chose to put caution and risk reduction aside.

Did Trump really recover when he restarted his campaign so quickly? How will his physical condition affect the rest of the campaign? With Trump back and the U.S. election in its final sprint, what's next? In the last month, what factors will influence the final result? How do you see the style of the campaign ads for both Trump and Biden? Is such an advertising war common in U.S. election history? Do we see that both camps in the U.S. election spent a lot of money and a lot of public resources on advertising campaigns? How much can these campaign ads do?