Joe Biden, byname of Joseph Robinette Biden, (born November 20, 1942, Scranton, Pennsylvania, U.S.), 47th vice president of the United States (2009–17) in the Democratic administration of Pres. Barack Obama. He was elected president of the United States in November 2020.

Biden immediately became a front-runner, and he pursued a platform that was considered moderate, especially as compared with such candidates as Bernie Sanders. A poor performance in the party’s first debate in June 2019, however, raised questions about Biden, and his support dipped. After the first three nomination contests in early 2020, Sanders seemed poised to become the party’s nominee. However, worries about Sanders’s electability in the general election galvanized moderate voters, and in South Carolina in late February Biden won a resounding victory. Numerous candidates subsequently dropped out, and by early March it had become a two-man race between Biden and Sanders. As Biden registered more wins, he soon took a commanding lead in delegates. After the coronavirus pandemic stalled the race, Sanders dropped out in April, and Biden became the presumptive Democratic nominee.

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