After White House doctors gave an optimistic review of Donald Trump’s health on Saturday morning, the White House chief of staff told reporters a more dire prognosis of the president. The New York Times writes:

“The president’s vitals over the last 24 hours were very concerning and the next 48 hours will be critical in terms of his care,” Mr. Meadows told reporters outside Walter Reed National Military Medical Center, where the president was flown on Friday evening and will remain for at least a few days. “We’re still not on a clear path to a full recovery.”

Mr. Meadow’s remarks were attributed to a person familiar with the president’s health in a pool report sent to White House journalists in keeping with ground rules that he set for the interview. But a video posted online captured Mr. Meadows approaching the pool reporters outside Walter Reed following the doctors’ televised briefing and asking to speak off the record, making clear who the unnamed source was.

The White House told the Times that the president had trouble breathing on Friday and was given supplemental oxygen. But on Saturday, the White House physician, Dr. Sean P. Conley said the president was not currently receiving oxygen and refused to say if he had been on it earlier.

Read this chronology from Jonathan Swan of Axios as he tries to figure out what’s really going on.

There are lots of things that don’t add up. Listen to this doctor on the normal progression of the disease.