When Sanders suspended his campaign on April 8, 2020, Biden became the Democratic Party's presumptive nominee for president. On April 13, Sanders endorsed Biden in a live-streamed discussion from their homes. Former President Barack Obama endorsed Biden the next day. In March 2020, Biden committed to choosing a woman as his running mate. In June, Biden met the 1,991-delegate threshold needed to secure the party's presidential nomination. 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.