President Trump on Sunday touted the promising results from small-scale studies of hydroxycloroquine and warned that a coronavirus vaccine may have a "horrible impact" if not properly tested.

"If we have a vaccine, we have to make sure it doesn't have a horrible impact, that it doesn't destroy anyone, with the other one [hydroxycloroquine] we don't have to," Trump said.

From The Hill, "Trump promotes use of drug for coronavirus: 'I'm not a doctor. But I have common sense'":

"What do you have to lose?" he said. "I'm not looking at it one way or another. But we want to get out of this. If [hydroxycloroquine] does work, it would be a shame if we didn't do it early."

"What do I know? I'm not a doctor," he added. "But I have common sense."

The president has for days opined on the potential efficacy of hydroxychloroquine when taken with azithromycin.

[…] "I want people to live, and I'm seeing people dying," he said. "And you know the expression when that's happening. You should do it. What really do we have to lose?"

Earlier this week, Fauci said Americans should not assume hydroxychloroquine is a "knockout drug" and a coronavirus vaccine "ultimate game changer."

Axios reported Sunday that there was an internal battle among White House trade official Peter Navarro and Anthony Fauci over whether the drug should be touted by the administration.