U.S. President Donald Trump tosses face masks to the crowd as he takes the stage for a campaign rally, his first since being treated for the coronavirus disease (COVID-19), at Orlando Sanford International Airport in Sanford, Florida, U.S., October 12, 2020. resident Donald Trump returned to the campaign trail on Monday for the first time since he announced his COVID-19 diagnosis. REUTERS/Jonathan Ernst

U.S. President Donald Trump reacts as he holds a package of masks before throwing them into the crowd during a campaign rally, his first since being treated for the coronavirus disease (COVID-19), at Orlando Sanford International Airport in Sanford, Florida, U.S., October 12, 2020. Trump arrived at the outdoor rally in Sanford, Florida, the first of six planned for this week, without a protective mask. REUTERS/Jonathan Ernst

U.S. President Donald Trump throws a face mask from the stage during a campaign rally, his first since being treated for the coronavirus disease (COVID-19), at Orlando Sanford International Airport in Sanford, Florida, U.S., October 12, 2020. Trump's return to his signature campaign rallies kicked off a three-week sprint to the Nov. 3 election. REUTERS/Jonathan Ernst

U.S. President Donald Trump gestures during a campaign rally, his first since being treated for the coronavirus disease (COVID-19), at Orlando Sanford International Airport in Sanford, Florida, U.S., October 12, 2020. REUTERS/Jonathan Ernst

U.S. President Donald Trump speaks during a campaign rally, his first since being treated for the coronavirus disease (COVID-19), at Orlando Sanford International Airport in Sanford, Florida, U.S., October 12, 2020. REUTERS/Jonathan Ernst

U.S. President Donald Trump gestures during a campaign rally, his first since being treated for the coronavirus disease (COVID-19), at Orlando Sanford International Airport in Sanford, Florida, U.S., October 12, 2020. REUTERS/Jonathan Ernst