U.S. senator Sanders launches 2020 presidential campaign

U.S. Senator Bernie Sanders kisses his wife during his first presidential campaign rally in Brooklyn College, New York, the United States, March 2, 2019. U.S. Senator Bernie Sanders kicked off his 2020 presidential campaign as a second-time runner on Saturday in his hometown borough of Brooklyn, New York, reiterating his Democratic socialist views that have been reshaping the Democratic Party. (Xinhua/Li Muzi)