President Donald Trump leaves after an event about coronavirus testing strategy, in the Rose Garden of the White House, Monday, Sept. 28, 2020, in Washington. (AP Photo/Evan Vucci)

Counselor to the President Hope Hicks, left, with White House senior adviser Jared Kushner, walk from Marine One to accompany President Donald Trump aboard Air Force One as he departs Wednesday, Sept. 30, 2020, at Andrews Air Force Base, Md. (AP Photo/Alex Brandon)

In this Sept. 29, 2020, file photo, President Donald Trump holds up his face mask during the first presidential debate at Case Western University and Cleveland Clinic, in Cleveland, Ohio. President Trump and first lady Melania Trump have tested positive for the coronavirus, the president tweeted early Friday. (AP Photo/Julio Cortez, File)

President Donald Trump speaks at Duluth International Airport on Wednesday, Sept. 30, 2020, during a campaign stop in Duluth, Minn. (AP Photo/Jack Rendulich)