[global news] on the evening of the 20th local time, the US National Congress entered its fourth night. Biden, who has just accepted the 2020 presidential nomination, made a speech at the conference, calling on Americans to unite to end the “dark season” in the United States, CNN reported live. < / P > < p > “too much anger, too much fear, too much disagreement. At this point in time, I assure you that if you entrust me with the presidency, I will learn from our best, not our worst. I will be a friend of the light, not of the dark. It’s time for us, our people, to unite. ” Biden said.