Reporters have described the White House as a "ghost town" as many staff members have been told to work from home and journalists who were exposed to the infected press secretary isolate at home.
Trump is back after a highly-choreographed helicopter arrival on Monday evening. He has vowed to return to the campaign trail soon, but has no official events on his public schedule today.
He is considering making a nationally-televised address to the nation, according to reports, even as he continues to fight off illness caused by the coronavirus.
Trump's doctors and outside experts say there is still a risk that his condition can reverse and worsen, as he is only about five days out from his positive diagnosis.