Former Vice President Biden formally accepted the presidential nomination and delivered a speech at the National Congress on the 20th of local time. Speaking of the current novel coronavirus pneumonia in the United States, Biden said that if he was elected president, he would implement a series of “national strategies” to contain the new crown virus, including the mandatory wearing of masks throughout the country. According to reports from CNBC, Russia and other foreign media, Biden delivered a speech at the conference on the 20th. “If I become president of the United States one day, I will implement the national strategy that has been proposed since March,” Biden said. “We will make masks mandatory across the United States – it’s not a burden, it’s for mutual protection.” Biden also pointed out that wearing masks is a kind of “patriotic responsibility”. In addition, he also talked about the development and deployment of rapid detection of new coronavirus after becoming president. Biden was officially nominated for president on November 18, local time. He will run in the presidential election on November 3, competing with current Republican president trump, 74, for the next president of the United States. Biden was born in Pennsylvania on November 20, 1942. He was a lawyer. He stepped into politics in 1970. In 1972, he was elected to the U.S. Senate for the first time. He served as the chairman of the Senate judicial committee and foreign relations committee, and served as the vice president of the United States during the Obama administration.