Trump says he hopes Rand Paul will be fine after COVID-19 diagnosis

Trump also sent his well wishes to U.S. Representative Mario Díaz-Balart, who has also tested positive for the virus, referring to him as "José Díaz-Balart" during a press conference at the White House.

"I think they'll all to be fine," Trump said. "It hope they're going to be fine."

Trump also said on Sunday the National Guard would help New York, California and Washington state respond to the coronavirus crisis.