Vice presidency of Kamala Harris

Kamala Harris served as the 49th vice president of the United States during the presidency of Joe Biden from January 20, 2021, to January 20, 2025. Harris, a member of the Democratic Party who previously served as the junior U.S. senator representing California from 2017 to 2021, was selected as former vice president Biden's running mate and took office following their victory in the 2020 presidential election over Republican incumbent president Donald Trump and vice president Mike Pence. In her role as President of the United States Senate, she cast more tie-breaking votes than any other vice president. Harris was the first woman vice president, Black American vice president, and Asian American vice president.

The Biden-Harris transition was marked by Pence's refusal to obey Trump's orders to overturn the 2020 United States presidential election during the January 6, 2021 United States Capitol attack. During Harris' first two years in office, the Democratic Party held their slim majorities in the House of Representatives under Speaker Nancy Pelosi and the Senate under Senate majority leader Chuck Schumer during the 117th U.S. Congress. Presiding over an evenly split U.S. Senate upon entering office, Harris cast a record 33 tie-breaking votes to confirm presidential appointments and pass the American Rescue Plan Act of 2021 and the Inflation Reduction Act of 2022.

In July 2024, after Biden ultimately withdrew his candidacy for re-election, Harris immediately launched her own presidential campaign with his endorsement. She later became the nominee and selected Minnesota governor Tim Walz as her running mate. They lost the 2024 election to the Republican ticket of former president Trump and his running mate, junior Ohio senator JD Vance. As vice president in her capacity as the president of the Senate, Harris oversaw the certification of Trump and Vance as the winners of the election on January 6, 2025. Biden and Harris were succeeded in office by Trump and Vance on January 20, 2025.