File photo shows U.S. President Donald Trump participates in a campaign rally in Lexington, Kentucky, the United States, on Nov. 4, 2019. (Xinhua/Hu Yousong)
WASHINGTON, June 20 (Xinhua) -- U.S. President Donald Trump held his first rally in more than three months in Tulsa, Oklahoma on Saturday evening, despite warnings from health experts against large-scale gatherings as some states are seeing a surge in coronavirus cases after reopening. ■