A member of the cleaning staff sprays the James Brady Briefing Room of the White House on Monday, Oct. 5, 2020.
A member of the cleaning staff dressed in a protective suit sprays the James Brady Briefing Room of the White House on Oct. 5, 2020, in Washington.
After returning to the White House and removing his mask, President Donald Trump salutes toward Marine One helicopter as he stands on the balcony outside the Blue Room on Oct. 5, 2020.
President Donald Trump removes his mask upon his return to the White House from Walter Reed National Military Medical Center on Oct. 5, 2020.
President Donald Trump returns to the White House aboard Marine One on Oct. 5, 2020, after being treated for COVID-19 at Walter Reed National Military Medical Center.
President Donald Trump boards a helicopter at Walter Reed National Military Medical Center to return to the White House.
Marine One lifts off from Walter Reed National Military Medical Center in Bethesda, Md. as supporters cheer on Oct. 5, 2020.
Supporters cheer as President Donald Trump lifts off from Walter Reed Medical Center Oct. 5, 2020, in Bethesda, Maryland.
President Donald Trump walks out of Walter Reed National Military Medical Center on Oct. 5, 2020, to return to the White House after receiving treatments for COVID-19.
President Donald Trump walks out of Walter Reed National Military Medical Center on Oct. 5, 2020, in Bethesda, Maryland.
Supporters of President Trump gather outside Walter Reed Medical Center in Bethesda, Maryland on Oct. 5, 2020.
President Donald Trump offers a thumbs up to his supports from a motorcade outside Walter Reed Medical Center during his treatment for COVID-19 on Oct. 4, 2020, in Bethesda, Maryland.
Dr. Sean Conley, physician to President Donald Trump, briefs reporters at Walter Reed National Military Medical Center in Bethesda, Maryland, on Oct. 4, 2020.
White House chief of staff Mark Meadows, seated center, listens as Dr. Sean Conley, physician to President Donald Trump, briefs reporters at Walter Reed National Military Medical Center in Bethesda, Maryland, on Oct. 4, 2020.
In this handout image released by the White House, President Donald Trump works in the Presidential Suite at Walter Reed National Military Medical Center in Bethesda, Maryland, on Oct. 3, 2020, after testing positive for COVID-19.
Sean Conley, the White House physician, speaks during a briefing at Walter Reed National Military Medical Center in Bethesda, Maryland, where President Donald Trump is undergoing treatment for the coronavirus, on Oct. 3, 2020.
Supporters cheer at the main gate as Marine One with President Donald Trump aboard arrives at Walter Reed National Military Medical Center, in Bethesda, Maryland, on Oct. 2, 2020,.
President Donald Trump, left, walks off Marine One helicopter at Walter Reed National Military Medical Center with chief of staff Mark Meadows in Bethesda, Maryland, on Oct. 2, 2020.
President Donald Trump departs the White House for Walter Reed National Military Medical Center from the South Lawn of the White House on Oct. 2, 2020.
President Donald Trump waves as he travels in an armored vehicle with members of the Secret Service after arriving at Walter Reed Medical Center on Oct. 2, 2020, in Bethesda, Maryland.
President Donald Trump, aboard Marine One, arrives at Walter Reed National Military Medical Center in Bethesda, Maryland, on Oct. 2, 2020.
A young man salutes as Marine One carries President Donald Trump from the White House to Walter Reed National Military Medical Center on Oct. 2, 2020.
Marine One lifts off from the White House to carry President Donald Trump to Walter Reed National Military Medical Center in Bethesda, Maryland, on Oct. 2, 2020.
A view of the White House shortly after President Donald Trump revealed early Oct. 2, 2020, that he and his wife, Melania Trump, had tested positive for the coronavirus.
President Donald Trump returns to the White House after a fundraiser in New Jersey on Oct. 1, 2020.
President Donald Trump boards Air Force One at Joint Base Andrews in Maryland, en route to a fundraiser at Trump National Golf Club in Bedminster, New Jersey, on Oct. 1, 2020.
White House social media director Dan Scavino, left, wears a face mask as he accompanies President Donald Trump, right, aboard Marine One as they depart, Oct. 1, 2020, at Andrews Air Force Base.
President Donald Trump takes questions outside the White House before boarding Marine One on Sept. 30, 2020.
Hope Hicks before boarding Marine One at the White House on Sept. 30, 2020, with Stephen Miller, from right, Jared Kushner, Dan Scavino and Nick Luna.
President Donald Trump greets supporters after arriving to campaign in Minneapolis on Sept. 30, 2020.
President Donald Trump on Wednesday night, Sept. 30, 2020, at a reelection campaign rally in Duluth, Minnesota.
President Donald Trump is applauded by supporters at a reelection campaign rally in Duluth, Minnesota, on Sept. 30, 2020.
President Donald Trump at a reelection campaign rally in Duluth, Minn., on Sept. 30, 2020.
President Donald Trump at a campaign event in Duluth, Minnesota, Sept. 30, 2020.
President Donald Trump speaks at a reelection campaign rally in Duluth, Minnesota, on Sept. 30, 2020.
President Donald Trump waves to reporters as he and the first lady, Melania Trump, arrive in Cleveland for the first presidential debate on Sept. 29, 2020.
President Donald Trump and former Vice President Joe Biden, the Democratic nominee, on Sept. 29, 2020, at the first presidential debate in Cleveland, where Trump mocked Biden for his habit of wearing a mask in public.
Ivanka Trump during the first presidential debate on Sept. 29, 2020, in Cleveland.
From top, Eric Trump, senior adviser to the president Ivanka Trump, first lady Melania Trump, daughter of the president Tiffany Trump and Donald Trump Jr., are seen ahead of the first presidential debate at the Case Western Reserve University and Cleveland Clinic in Cleveland on Sept. 29, 2020.
President Donald Trump and first lady Melania Trump on stage after the first presidential debate between Trump and Democratic presidential nominee Joe Biden at the Health Education Campus of Case Western Reserve University on Sept. 29, 2020 in Cleveland.
President Donald Trump talks about the new 2021 Lordstown Motors Endurance hub-motor pickup truck on the South Lawn at the White House on Sept. 28, 2020.
President Donald Trump leaves after an event about coronavirus testing strategy in the Rose Garden of the White House on Sept. 28, 2020, in Washington.