Democratic contenders for 2020 U.S. presidency on stage for 1st debate

Senator Cory Booker of New Jersey is interviewed after Democratic Party's first primary debate in Miami, Florida, the United States, on June 26, 2019. Ten Democratic contenders for the 2020 U.S. presidency took the stage in Miami on Wednesday night for the party's first primary debate, a two-night event scheduled to be attended by 10 others on Thursday. (Xinhua)