Joe Biden wore a gray pinstripe suit, complete with an American flag pin on the lapel, complemented by a red tie emblazoned with tiny donkeys, the mascot of the Democratic Party. He was 30 minutes late. His opponent, whom he simply called “Trump” on first reference, wasn’t even on stage. After the delay, due to technical difficulties, the former vice president began his remarks, and it was immediately clear that his speech was meant to be a direct rebuttal to the president. It was a political debate. The topic: Coronavirus.