White House Aide Suggests No 'Clear Path Yet to a Full Recovery' as President Trump Says He Is 'Feeling Well'

President Donald Trump tweeted Saturday afternoon that he is feeling well, a day after he was admitted to the Walter Reed National Military Medical Center for COVID-19 treatment.

"Doctors, Nurses and ALL at the GREAT Walter Reed Medical Center, and others from likewise incredible institutions who have joined them, are AMAZING!!!Tremendous progress has been made over the last 6 months in fighting this PLAGUE. With their help, I am feeling well!"

Later in the early evening, Trump tweeted a new video, saying that he felt "much better now." The president also said he'll be back soon and expressed thanks for the support he's received since the diagnosis.

Hours before the release of the video, according to White House Chief of Staff Mark Meadows, the president experienced a "very concerning period" Friday and that the following 48 hours are critical regarding his care, the Associated Press reported.

"We're still not on a clear path yet to a full recovery," Meadows said.

Prior to the president's tweet, White House physician Dr. Sean Conley said earlier Saturday that Trump was doing "very well" and all of his coughing and congestion conditions were steadily improving. Trump's medical care team said the president has been fever-free for over 24 hours and that he's in "good spirits."

Speaking outside of Walter Reed, Conley said Trump's vitals were normal, and that the president was not on oxygen and "there is no cause for concern." Conley said Trump was not currently taking hydroxychloroquine but the two discussed taking the anti-malarial drug.

Dr. Sean Dooley, a pulmonary critical care physician on-hand for treatment, quipped that the president was ready to get all of the work done that Meadows has prepared for him during his illness. Conley declined to say how or when exactly Trump became infected.

"I feel like I could walk out of here today," the president said Saturday morning, according to Dooley, adding that Trump was getting around the hospital without any assistance. First lady Melania Trump did not require health care or treatment at Walter Reed.

A source told the AP after the Saturday press conference that Trump was administered oxygen at the White House on Friday before being taken to Walter Reed. Trump's doctor repeatedly declined to say whether he'd been on oxygen prior to Saturday.

"We are extremely happy with the progress the president has made," Conley added, noting that all of his vitals and liver and kidney functions are performing normally.

Following the press conference, Conley later corrected remarks he made regarding the timeline of Trump's diagnosis, in a statement issued through the White House:

"I incorrectly used the term 'seventy-two hours' instead of 'day three' and 'forty eight hours' instead of 'day two' with regards to his diagnosis and the administration of the polyclonal antibody therapy," he said. Conley added that Trump was first diagnosed with COVID-19 on Thursday and received the Regeron's antibody cocktail on Friday.

In a Thursday statement, Conley confirmed both President Trump and the first lady tested positive for COVID-19. Trump initially experienced a low-grade fever, chills, nasal congestion and a cough before being sent to Walter Reed for continued treatment Friday evening. Conley issued a memo Friday night saying Trump was doing "very well," and ABC News reported Saturday morning that Trump was no longer experiencing shortness of breath.

A Morning Consult poll published Saturday found only 44 percent of Americans trust the president's physician to truthfully report Trump's true health condition.

Trump on Friday took a single dose of the experimental antibody Remdesivir through an IV at the "compassionate use" request of his physician, the AP reported Saturday. Trump is said to only be experiencing mild symptoms including fatigue. The treatment is not authorized by the U.S. Food and Drug Administration.

Conley, a U.S. Navy officer, became the president's official physician in May 2018, but it wasn't until May 2020 that he was put in the national spotlight. Two months into the U.S. coronavirus pandemic, Trump announced he was taking hydroxychloroquine as a preventative measure against coronavirus at the direction of Conley.

"After numerous discussions he and I had regarding the evidence for and against the use of hydroxychloroquine, we concluded the potential benefit from treatment outweighed the risks," Conley wrote in a May 18 statement.

Earlier this week, Trump sent a letter to each of the country's state governors announcing the availability of 150 million rapid coronavirus tests. The president highlighted the delivery of Abbott Laboratories' BinaxNOW rapid point-of-care tests for nursing homes, and other vulnerable populations.

Updated 1:33 PM ET, with Trump's tweet and an AP source saying the president was administered oxygen prior to his visit to Walter Reed.

Updated 2:00 PM ET, with Dr. Conley's timeline correction.

Updated 3:55 PM ET, with Meadows' comments, as reported by the AP.

Updated 4:43 PM ET, with a revised headline.

Updated 8:53 PM ET, with a video featuring Trump via Twitter.