Xinhua International headline wechat official on August 21, local time on the evening of August 20, is a 77 year old American politician Joe Biden career highlight moment. He delivered a speech in Delaware, the “base” state, formally accepted the nomination of presidential candidate in 2020, denounced the current government for trapping the United States in the four “historical crises” of epidemic situation, economy, race and climate change, and vowed to take the United States “out of the dark”. When this year’s presidential campaign finally reached the party’s National Congress, the message from the camp became clearer: it was impossible to lose another four years. It seems that one of the representatives of “unity” has just finished. There are “moderates” and “progressives” in the lineup for Biden platform, including former presidents, party leaders, grassroots people, even sports stars and former Republicans. They came out in turns, canvassing Biden’s fancy ballots and naming trump, the Republican presidential candidate seeking re-election. < p > < p > in the primary election stage of the party, a poster imitating the movie “Avengers alliance” was not prominent at that time. “When I ran for president in 1976, Joe Biden was my first and most effective supporter in the Senate. He has been a loyal and dedicated friend of mine for decades < / P > < p > “you all know what Donald Trump is going to do in the next four years – toss the pot, intimidate, belittle. You know what Joe Biden is going to do – rebuild. ” < / P > < p > “it’s nearly four years since he (trump) is not interested in joining the job or seeking consensus; he is not interested in helping anyone through his own power, except to help himself and his friends; he treats the presidency like a reality show, and he has no interest in anything except to earn attention for himself.” < / P > < p > “I want to say to those who support other candidates, or those who supported trump in the last election, we must come together and defeat trump and elect Biden and Harris as the next president and vice president. The cost of failure will be beyond imagination. ” < p > < p > on August 17, U.S. Senator Bernie Sanders of Vermont attended the U.S. National Congress online (video capture). “Joe and Kamala (Harris) will make every family enjoy high-quality child care services, make pre-school classes” zero threshold “and improve the treatment of preschool education workers < / P > < p > “this combination can pull America back from the brink and rebuild it better. But if we don’t help, they won’t win the election. ” < / P > < p > “if you don’t think it’s going to get worse, trust me, it could be worse. If we don’t change in this election, things will get worse. If we want to end the chaos now, we have to vote for Biden, as if it could decide our life or death Michelle Obama, former first lady of the United States, attended the US National Congress online on August 17. Xinhua News Agency news agency < / P > < p > “I have been a Republican all my life, but my sense of responsibility for the country is higher than my attachment to the party. So I chose to attend this National Congress. ” < / P > < p > “if you want to know what the Biden administration will be like, look at the smoky ruins of Minneapolis, the violent anarchy of Portland, and the bloody sidewalks of Chicago. This kind of chaos will come to every town in the United States. ” < / P > < p > I’m afraid the 2016 National Congress is not really a “United Congress”. Although there was a “famous scene” in which former President Barack Obama was the platform of presidential candidate Hillary Clinton and the two hugged and laughed, some voters questioned and protested that “internal operation” squeezed out “progressive” candidate Sanders, which also attracted attention. On the one hand, he locked in the presidential nomination very early. In front of trump, a common “enemy,” the “moderates” and “progressives” soon united the front, and the party’s primary opponents endorsed Biden. On the other hand, Biden pays more attention to the demands of “progressives”, and its current policy stance shows more signs of “turning left” than in the preliminary election stage. As a result, the trump campaign has recently taken advantage of this and spared no effort to portray him as a “tool of the radical left”.