Speaking from outside Walter Reed hospital where the president was transferred a day earlier after being diagnosed with COVID-19, White House physician Dr. Sean Conley said Trump is fever-free, has normal cardiac, liver, and kidney levels, is not requiring supplemental oxygen, and is in "exceptionally good spirits." On Saturday evening, Conley said he's "extremely happy" with Trump's progress, although he's "not yet out of the woods." But White House Chief of Staff Mark Meadows cast the president's illness in a very different light shortly after the doctor initially spoke Saturday. Meadows told reporters on Saturday afternoon that the president's vital signs over the past 24 hours were "very concerning" and the next 48 hours would be critical. In a Fox News interview Saturday evening, Meadows confirmed that Trump's blood oxygen levels had dropped "rapidly" on Friday, prompting doctors to administer supplemental oxygen while he was still at the White House, but he also expressed optimism about Trump's condition going forward.