After finishing his second term as vice president, Biden began working at the University of Pennsylvania. On April 25, 2019, Biden launched his presidential campaign for the 2020 election. On April 8, 2020, Biden became the presumptive nominee for the Democratic nomination after Bernie Sanders ended his campaign. On November 7, he beat President Donald Trump and became the President-elect of the United States. He became President on January 20, 2021. He is the oldest person to become President and the first from Delaware.