U.S. President Donald Trump pulls off his protective face mask as he poses atop the Truman Balcony of the White House after returning from being hospitalized at Walter Reed Medical Center for coronavirus disease (COVID-19) treatment, in Washington, U.S. October 5, 2020. REUTERS/Erin Scott TPX IMAGES OF THE DAY 

U.S. President Donald Trump salutes as he poses without a face mask on the Truman Balcony of the White House after returning from being hospitalized at Walter Reed Medical Center for coronavirus disease (COVID-19) treatment, in Washington, U.S. October 5, 2020. REUTERS/Erin Scott 

U.S. President Donald Trump poses atop the Truman Balcony of the White House after taking off his mask as he returns to the White House after being hospitalized at Walter Reed Medical Center for coronavirus disease (COVID-19), in Washington, U.S. October 5, 2020. REUTERS/Erin Scott TPX IMAGES OF THE DAY 

U.S. President Donald Trump pulls off his protective face mask as he poses atop the Truman Balcony of the White House after returning from being hospitalized at Walter Reed Medical Center for coronavirus disease (COVID-19) treatment, in Washington, U.S. October 5, 2020. REUTERS/Erin Scott 

U.S. President Donald Trump salutes as he poses without a face mask on the Truman Balcony of the White House after returning from being hospitalized at Walter Reed Medical Center for coronavirus disease (COVID-19) treatment, in Washington, U.S. October 5, 2020. REUTERS/Erin Scott 

U.S. President Donald Trump poses atop the Truman Balcony of the White House after taking off his protective face mask as he returns from being hospitalized at Walter Reed Medical Center for coronavirus disease (COVID-19) treatment, in Washington, U.S. October 5, 2020. REUTERS/Erin Scott 

U.S. President Donald Trump walks down the steps of Walter Reed National Military Medical Center followed by U.S. Secret Service agents and White House Chief of Staff Mark Meadows as he departs after a fourth day of treatment for the coronavirus disease (COVID-19) to return to the White House in Washington from the hospital in Bethesda, Maryland, U.S., October 5, 2020. REUTERS/Jonathan Ernst 

U.S. President Donald Trump makes a fist as he walks out the front doors of Walter Reed National Military Medical Center after a fourth day of treatment for the coronavirus disease (COVID-19) as he heads to the Marine One helicopter to return to the White House in Washington from the hospital in Bethesda, Maryland, U.S., October 5, 2020. REUTERS/Jonathan Ernst 

People take pictures of Marine One with U.S. President Donald Trump as it flies to the White House after the president underwent treatment for the coronavirus disease (COVID-19), in Washington, U.S., October 5, 2020. REUTERS/Carlos Barria 

U.S. President Donald Trump boards Marine One as he departs Walter Reed National Military Medical Center after a fourth day of treatment for the coronavirus disease (COVID-19) to return to the White House in Washington from the hospital in Bethesda, Maryland, U.S., October 5, 2020. REUTERS/Jonathan Ernst 

U.S. President Donald Trump gives a thumbs up towards reporters and photographers as he departs Walter Reed National Military Medical Center after a fourth day of treatment for the coronavirus disease (COVID-19) to return to the White House in Washington from the hospital in Bethesda, Maryland, U.S., October 5, 2020. REUTERS/Jonathan Ernst 

A White House staff member holds the door for U.S. President Donald Trump as he exits Walter Reed National Military Medical Center after a fourth day of treatment for the coronavirus disease (COVID-19) to return to the White House in Washington from the hospital in Bethesda, Maryland, U.S., October 5, 2020. REUTERS/Jonathan Ernst 

Supporters rally for U.S. President Donald Trump outside of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

A police officer stands by as Secret Service agents and supporters run alongside U.S. President Donald Trump's motorcade, as Trump rides outside of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

A man protesting against U.S. President Donald Trump argues with a supporter outside of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

A woman in support of Black Lives Matter, protests outside of the Walter Reed National Military Medical Center, where U.S. President Donald Trump is being treated for coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

A supporter drives by holding up 4 fingers for U.S. President Donald Trump outside of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

A supporter drives by for U.S. President Donald Trump outside of the Walter Reed National Military Medical Center, where he is being treated for coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

U.S. President Donald Trump waves to supporters as he briefly rides by in the presidential motorcade in front of Walter Reed National Military Medical Center, where he is being treated for coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May TPX IMAGES OF THE DAY 

White House Chief of Staff Mark Meadows rubs his head as U.S. Navy Commander Dr. Sean Conley, the White House physician, speaks to the media about U.S. President Donald Trump's health after the president was hospitalized for the coronavirus disease (COVID-19) treatment, at Walter Reed National Military Medical Center in Bethesda, Maryland, U.S., October 4, 2020. REUTERS/Erin Scott TPX IMAGES OF THE DAY 

U.S. President Donald Trump rides in front of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

U.S. Navy Commander Dr. Sean Conley, the White House physician, flanked by other doctors, talks to reporters about U.S. President Donald Trump's health after the president was hospitalized for coronavirus disease (COVID-19) treatment, at Walter Reed National Military Medical Center in Bethesda, Maryland, U.S., October 3, 2020. REUTERS/Ken Cedeno TPX IMAGES OF THE DAY 

Daniela Taomorina of Staten Island participates in a prayer with fellow supporters of U.S. President Donald Trump, who was diagnosed with the coronavirus disease (COVID-19), at the commencement of the New York Triumph Rally on Staten Island in New York City, U.S., October 3, 2020. REUTERS/Andrew Kelly TPX IMAGES OF THE DAY 

Supporters rally at a vigil for U.S. President Donald Trump outside of Walter Reed National Military Medical Center, where he is being treated for coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 3, 2020. REUTERS/Jonathan Ernst 

Supporters huddle for warmth as they stand vigil for U.S. President Donald Trump outside of Walter Reed National Military Medical Center, where Trump is being treated for coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 3, 2020. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY 

White House Chief of Staff Mark Meadows pats U.S. Navy Commander Dr. Sean Conley, the White House physician, on the back following a media briefing about U.S. President Donald Trump's health after the president was hospitalized for coronavirus disease (COVID-19) treatment, at Walter Reed National Military Medical Center, in Bethesda, Maryland, U.S., October 3, 2020. REUTERS/Ken Cedeno ? 

A supporter of U.S. President Donald Trump holds a sign outside of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 5, 2020. REUTERS/Leah Millis 

Supporters rally for U.S. President Donald Trump outside of the Walter Reed National Military Medical Center, where he is being treated for the coronavirus disease (COVID-19) in Bethesda, Maryland, U.S. October 4, 2020. REUTERS/Cheriss May 

Supporters of U.S. President Donald Trump take part in a car parade in Columbus, Ohio, U.S., October 3, 2020. REUTERS/Megan Jelinger 

U.S. President Donald Trump arrives at Walter Reed National Military Medical Center by helicopter after the White House announced that he "will be working from the presidential offices at Walter Reed for the next few days" after testing positive for the coronavirus disease (COVID-19), in Bethesda, Maryland, U.S., October 2, 2020. REUTERS/Joshua Roberts TPX IMAGES OF THE DAY 

U.S. President Trump walks to the Marine One helicopter as he departs the White House to fly to Walter Reed National Military Medical Center, where it was announced he will work for at least several days after testing positive for the coronavirus disease (COVID-19), on the South Lawn of the White House in Washington, U.S., October 2, 2020. REUTERS/Leah Millis TPX IMAGES OF THE DAY 

White House staff members wait to watch U.S. President Donald Trump depart by helicopter to fly to Walter Reed National Military Medical Center, where it was announced that he will work for at least several days after testing positive for the coronavirus disease (COVID-19), on the South Lawn of the White House in Washington, U.S., October 2, 2020. REUTERS/Leah Millis TPX IMAGES OF THE DAY 

U.S. President Trump walks to the Marine One helicopter wearing a protective face mask as he departs the White House to fly to Walter Reed National Military Medical Center, where it was announced he will work for at least several days after testing positive for the coronavirus disease (COVID-19), on the South Lawn of the White House in Washington, U.S., October 2, 2020. REUTERS/Leah Millis TPX IMAGES OF THE DAY 

White House Chief of Staff Mark Meadows follows U.S. President Trump to the Marine One helicopter to depart the White House and fly to Walter Reed National Military Medical Center, where it was announced he will stay for at least several days after testing positive for the coronavirus disease (COVID-19), on the South Lawn of the White House in Washington, U.S., October 2, 2020. REUTERS/Leah Millis 

U.S. President Donald Trump boards the Marine One helicopter to depart the White House and fly to Walter Reed National Military Medical Center, where it was announced he will stay for at least several days after testing positive for the coronavirus disease (COVID-19), on the South Lawn of the White House in Washington, U.S., October 2, 2020. REUTERS/Leah Millis 

White House aides, including the military aide carrying the nuclear launch codes known as "the nuclear football," follow U.S. President Donald Trump as he boards the Marine One helicopter to depart the White House and fly to Walter Reed National Military Medical Center, where it was announced he will stay for at least several days after testing positive for the coronavirus disease (COVID-19), on the South Lawn of the White House in Washington, U.S., October 2, 2020. REUTERS/Leah Millis 

U.S. President Donald Trump disembarks from the Marine One helicopter followed by White House Chief of Staff Mark Meadows as he arrives at Walter Reed National Military Medical Center after the White House announced that he "will be working from the presidential offices at Walter Reed for the next few days" after testing positive for the coronavirus disease (COVID-19), in Bethesda, Maryland, U.S., October 2, 2020. REUTERS/Joshua Roberts 

A crowd of members of the public gathers outside the gates of Walter Reed National Military Medical Center as the Marine One helicopter with U.S. President Donald Trump aboard lands after the White House announced that he "will be working from the presidential offices at Walter Reed for the next few days" after testing positive for the coronavirus disease (COVID-19), in Bethesda, Maryland, U.S., October 2, 2020. REUTERS/Joshua Roberts 

U.S. Secret Service agents stand at their posts as the Marine One helicopter with U.S. President Donald Trump onboard lifts off to depart the White House and fly to Walter Reed National Military Medical Center, where it was announced the president will stay for at least several days after testing positive for the coronavirus disease (COVID-19), on the South Lawn of the White House in Washington, U.S., October 2, 2020. REUTERS/Leah Millis