The 2020 United States elections were held on Tuesday, 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 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 defeated incumbent president to have overseen his party lose the presidency and control of both the House and the Senate 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.

United States gubernatorial elections were held on November 3, 2020, in 11 states and two territories. The previous gubernatorial elections for this group of states took place in 2016, except in New Hampshire and Vermont where governors only serve two-year terms. These two states elected their current governors in 2018. Nine state governors ran for reelection and all nine won, while Democrat Steve Bullock of Montana could not run again due to term limits and Republican Gary Herbert of Utah decided to retire at the end of his term.