This is the best summary I could come up with:

The illness, which the president’s doctor said had produced only mild symptoms so far, was diagnosed even as the Democratic revolt over his candidacy got louder, with more of Mr. Biden’s allies and supporters calling on him to drop out of the race, citing concerns about his ability to defeat Mr. Trump.

Mr. Biden told reporters, “I feel good,” as he boarded Air Force One in Las Vegas to fly back to his beach house in Delaware, where he plans to recuperate.

But having Covid is all but certain to complicate the president’s ability to answer his critics, many of whom have said they want him to show that he still has the vigor and energy to prosecute the case against Mr. Trump in campaign rallies, interviews and other events.

He was scheduled to speak at the annual conference for UnidosUS, a Latino civil rights and advocacy organization, but canceled after an hourlong delay when his Covid test came back positive.

Mr. Biden is trying desperately to end the conversation about his cognitive capacity and address what polls suggest are three of his biggest political weaknesses: immigration, the economy and slipping support among Latinos.

Karine Jean-Pierre, the White House press secretary, said in a statement that “earlier today, following his first event in Las Vegas, President Biden tested positive for COVID-19.” She added that “he is vaccinated and boosted and he is experiencing mild symptoms.”

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