[296] Elizabeth Warren and Mike Bloomberg soon dropped out, and Biden expanded his lead with victories over Sanders in four states on March 10.[297]
In late March 2020, Tara Reade, one of the eight women who in 2019 had accused Biden of inappropriate physical contact, accused Biden of having sexually assaulted her in 1993.[298] There were inconsistencies between Reade's 2019 and 2020 allegations.[298][299] Biden and his campaign denied the sexual assault allegation.[300][301]
When Sanders suspended his campaign on April 8, 2020, Biden became the Democratic Party's presumptive nominee for president.[302] On April 13, Sanders endorsed Biden in a live-streamed discussion from their homes.[303] Former President Barack Obama endorsed Biden the next day.[304] On August 11, he announced U.S. Senator Kamala Harris of California as his running mate, making her the first African American and first South Asian American vice-presidential nominee on a major-party ticket.[305] On August 18, 2020, Biden was officially nominated at the 2020 Democratic National Convention as the Democratic Party nominee for president in the 2020 election.[306][307]

Presidential transition
Main article: Presidential transition of Joe Biden
Biden was elected the 46th president of the United States in November 2020. 