Photo taken in Arlington, Virginia, the United States on Aug. 20, 2020 shows screens displaying images of former U.S. Vice President Joe Biden speaking in a video feed of the 2020 Democratic National Convention. (Xinhua/Liu Jie)
WASHINGTON, Oct. 2 (Xinhua) -- 2020 Democratic presidential nominee Joe Biden and his wife, Jill Biden, have tested negative for COVID-19, his campaign said on Friday. ■
