On August 20, local time, the last night of the National Congress, former US President Biden officially accepted the presidential nomination and delivered an online speech. In his speech, he regarded his election as a struggle to repeat the “light” and win back the “American soul”. He proposed plans to control the epidemic, invest in infrastructure, and revive the economy, and launched a fierce attack on the current president trump. He criticized trump for covering the United States in the dark for a long time, making the United States deeply involved in the public health crisis and leading to economic downturn. He also criticized trump for “irresponsible, refusing to lead, blaming others, flattering dictators” and so on.