Two people (L) protest before a campaign rally of Donald Trump in Tulsa of Oklahoma, the United States, June 20, 2020. U.S. President Donald Trump Saturday evening held his first rally in more than three months, despite warnings from health experts against large-scale gatherings amid a surge in COVID-19 cases after reopening in some states. (Photo by Alan Chin/Xinhua)

A supporter gets his temperature checked prior to attending a campaign rally for Donald Trump in Tulsa of Oklahoma, the United States, June 20, 2020. U.S. President Donald Trump Saturday evening held his first rally in more than three months, despite warnings from health experts against large-scale gatherings amid a surge in COVID-19 cases after reopening in some states. (Photo by Alan Chin/Xinhua)

Supporters wait to attend a campaign rally for Donald Trump in Tulsa of Oklahoma, the United States, June 20, 2020. U.S. President Donald Trump Saturday evening held his first rally in more than three months, despite warnings from health experts against large-scale gatherings amid a surge in COVID-19 cases after reopening in some states. (Photo by Alan Chin/Xinhua)