President Trump taken to Walter Reed Medical Center after COVID-19 diagnosis

President Donald Trump was admitted to Walter Reed Medical Center on Friday evening, just hours it was announced he had contracted COVID-19.

The Washington Post reported that Trump was being taken to Walter Reed on Friday evening, citing " two administration officials" as its sources.

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Officials have said Trump has had mild to moderate symptoms, including a fever. There have not yet been any updates or indications if his condition has worsened. He is, according to a statement from the White House, being treated with Regeneron's polyclonal antibody cocktail, which is still experimental.

The White House maintains this step is being taken in "an abundance of caution," and that the president will be "working from the presidential offices at Walter Reed for the next few days."

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After being flown to Walter Reed, Trump himself posted a video to Twitter about his trip to the hospital.

"I want to thank everybody for the tremendous support," he said. "I think I'm doing very well. But we're going to make sure that things work out."

Trump walked under his own power to the Marine One to be transported to the hospital.

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The president first announced in a tweet after 1 a.m. ET on Friday that he and first lady Melania Trump had contracted coronavirus. The first indications that it was possible the Commander-in-Chief had contracted the virus came when it was revealed on Thursday that top adviser Hope Hicks had tested positive.

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"Tonight, @FLOTUS and I tested positive for COVID-19," Trump wrote at the time. "We will begin our quarantine and recovery process immediately. We will get through this TOGETHER!"

The president was first described as having mild symptoms. Vanity Fair reported on Friday that his first symptoms included a cough and fever. White House Press Secretary Kayleigh McEnany later on Friday released a statement from Trump's doctor that said that the president had received a dose of Regeneron's antibody cocktail a "precautionary measure." Trump was described as "fatigued" but "in good spirits."

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Other world leaders, such as U.K. Prime Minister Boris Johnson and Brazilian President Jair Bolsonaro, have previously contracted the virus and recovered. Johnson had to be hospitalized, while Bolsonaro reportedly had a mild case.

Before contracting the illness, Trump had long downplayed the seriousness of the coronavirus — which has killed more than 200,000 Americans — and even mocked Vice President Joe Biden for always wearing a mask during the first presidential debate.

In the days after the debate, it was revealed a number of people in Trump's orbit had contracted COVID-19. Among those infected were RNC Chairwoman Ronna McDaniel, Notre Dame President Rev. John Jenkins, and Republican Utah Sen. Mike Lee.

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In the wake of the news that the president had coronavirus, news broke that there had been a number of events in Republican circles that did not adhere strict social-distancing or mask-wearing guidelines.

Much of the Trump family did not wear masks at the presidential debate, a number of events surrounding Amy Coney Barrett's nomination to the Supreme Court were unmasked, and Trump fundraiser in New Jersey reportedly wasn't socially distanced or masked. It isn't yet clear where or how exactly Trump contracted the virus, however.

This story is developing...