2020 Republican Party presidential primaries in the context of 2020 Republican National Convention

Presidential elections were held in the United States on November 3, 2020. The Democratic ticket of former vice president Joe Biden and California junior senator Kamala Harris defeated the incumbent Republican president Donald Trump and vice president Mike Pence. The election saw the highest voter turnout by percentage since 1900. Biden received more than 81 million votes, the most votes ever cast for a presidential candidate in U.S. history.

In a competitive primary that featured the most candidates for any political party in the modern era of American politics, Biden secured the Democratic presidential nomination. Biden's running mate, Harris, became the first African American, first Asian American, and third female vice presidential nominee on a major party ticket. Trump easily secured re-nomination with only minor opposition in the Republican primaries. Jo Jorgensen secured the Libertarian presidential nomination with Spike Cohen as her running mate, and Howie Hawkins secured the Green presidential nomination with Angela Nicole Walker as his running mate.

Elections were held in the United States on November 3, 2020. The Democratic Party's nominee, former vice president Joe Biden, defeated incumbent Republican president Donald Trump in the presidential election. Despite losing seats in the House of Representatives, Democrats retained control of the House and very narrowly gained control of the Senate. As a result, the Democrats obtained a government trifecta, the first time since the elections in 2008 that the party gained unified control of Congress and the presidency. With Trump losing his bid for re-election, he became the first president to have seen his party lose the presidency and control of both the House and the Senate in a single term since Herbert Hoover in 1932. This was the first time since 1980 that either chamber of Congress flipped partisan control in a presidential year, and the first time Democrats did so since 1948.

Biden became his party's nominee after defeating numerous challengers in the Democratic primaries, while Trump faced token opposition in the Republican primaries. In the congressional elections, Democrats lost seats in the House of Representatives but retained their majority in the chamber by a narrow margin. Democrats made a net gain of three seats in the Senate for a total of 50 seats, taking control of the chamber as newly elected vice-president Kamala Harris could cast tie-breaking votes. Contests for the six non-voting congressional delegates from the District of Columbia and the permanently inhabited U.S. territories were also held during the 2020 elections.