2020 Oklahoma Democratic presidential primary

Super Tuesday is the United States presidential primary election day in February or March when the greatest number of U.S. states hold primary elections and caucuses. Approximately one-third of all delegates to the presidential nominating conventions can be won on Super Tuesday, more than on any other day. The results on Super Tuesday are therefore a strong indicator of the likely eventual nominee of each political party.

The 2020 Democratic National Convention was a presidential nominating convention that was held from August 17 to 20, 2020, at the Wisconsin Center in Milwaukee, Wisconsin, and virtually across the United States. At the convention, delegates of the United States Democratic Party formally chose former vice president Joe Biden and Senator Kamala Harris of California as the party's nominees for president and vice president, respectively, in the 2020 United States presidential election.

As of the 2010 census, there are five United States congressional districts in Oklahoma. It was one of the states that was able to keep the same number of congressional districts from the previous census. Following the 2018 elections, a Democratic challenger ousted a Republican incumbent, changing the congressional delegation to a 4-1 Republican majority. The Republicans regained the seat in 2020 when Stephanie Bice defeated Horn. Along with Vermont & Delaware, Oklahoma has never gained a congressional seat.

The Democratic National Committee (DNC) is the governing body of the United States Democratic Party. The committee coordinates strategy to support Democratic Party candidates throughout the country for local, state, and national office, as well as works to establish a "party brand". It organizes the Democratic National Convention held every four years to nominate a candidate for President of the United States and to formulate the party platform. While it provides support for party candidates, it does not have direct authority over elected officials. When a Democrat is president, the White House controls the Committee. According to Boris Heersink, "political scientists have traditionally described the parties’ national committees as inconsequential but impartial service providers."

Kendra Suzanne Horn is an American lawyer and politician who served as the U.S. representative for Oklahoma's 5th congressional district from 2019 to 2021. A member of the Democratic Party, her district included almost all of Oklahoma City.

Joseph Robinette Biden Jr. is an American politician who is the 46th and current president of the United States. A member of the Democratic Party, he previously served as the 47th vice president from 2009 to 2017 under President Barack Obama and represented Delaware in the United States Senate from 1973 to 2009.

Michael Rubens Bloomberg is an American businessman, politician, philanthropist, and author. He is the majority owner, co-founder and CEO of Bloomberg L.P. He was Mayor of New York City from 2002 to 2013, and was a candidate for the 2020 Democratic nomination for President of the United States. He has served as chair of the Defense Innovation Board, an independent advisory board that provides recommendations on artificial intelligence, software, data and digital modernization to the United States Department of Defense, since June 2022.

Bernard Sanders is an American politician serving as the senior United States senator from Vermont, a seat he has held since 2007. He was the U.S. representative for the state's at-large congressional district from 1991 to 2007. Sanders is the longest-serving independent in U.S. congressional history. He has a close relationship with the Democratic Party, having caucused with House and Senate Democrats for most of his congressional career. A self-described democratic socialist, he is often seen as a leader of the progressive movement in the United States. Sanders unsuccessfully sought the Democratic Party nomination for president of the United States in 2016 and 2020, finishing in second place in both campaigns. Before his election to Congress, he was mayor of Burlington, Vermont.

Elizabeth Ann Warren is an American politician and former law professor who is the senior United States senator from Massachusetts, serving since 2013. A member of the Democratic Party and regarded as a progressive, Warren has focused on consumer protection, equitable economic opportunity, and the social safety net while in the Senate. Warren was a candidate in the 2020 Democratic Party presidential primaries, ultimately finishing third.

Michael Farrand Bennet is an American attorney, businessman, and politician serving as the senior United States senator from Colorado, a seat he has held since 2009. A member of the Democratic Party, he was appointed to the seat when Senator Ken Salazar became Secretary of the Interior. Bennet previously worked as a managing director for the Anschutz Investment Company, chief of staff to Denver mayor John Hickenlooper, and superintendent of Denver Public Schools.

Peter Paul Montgomery Buttigieg is an American politician and former naval officer who is currently serving as the 19th United States secretary of transportation. A member of the Democratic Party, he was the 32nd mayor of South Bend, Indiana, from 2012 to 2020, which earned him the nickname "Mayor Pete".

Cory Anthony Booker is an American politician and attorney who has served as the junior United States senator from New Jersey since 2013. A member of the Democratic Party, Booker is the first African-American U.S. senator from New Jersey. He was the 38th mayor of Newark from 2006 to 2013, and served on the Municipal Council of Newark for the Central Ward from 1998 to 2002.

Julián Castro is an American lawyer and politician from San Antonio. A member of the Democratic Party, he was the youngest member of President Obama's cabinet, serving as the 16th United States Secretary of Housing and Urban Development from 2014 to 2017. Castro served as the mayor of his native San Antonio, Texas from 2009 until he joined Barack Obama's cabinet in 2014.

Amy Jean Klobuchar is an American politician and lawyer serving as the senior United States senator from Minnesota, a seat she has held since 2007. A member of the Minnesota Democratic–Farmer–Labor Party (DFL), Minnesota's affiliate of the Democratic Party, she previously served as the attorney of Hennepin County.

Deval Laurdine Patrick is an American politician, civil rights lawyer, author, and businessman who served as the 71st governor of Massachusetts from 2007 to 2015. He was first elected in 2006, succeeding Mitt Romney, who chose not to run for reelection to focus on his 2008 presidential campaign. He was reelected in 2010. He was the first African-American Governor of Massachusetts and the first Democratic Governor of the state in 16 years since Michael Dukakis left office in 1991. Patrick served from 1994 to 1997 as the United States Assistant Attorney General for the Civil Rights Division under President Bill Clinton. He was briefly a candidate for President of the United States in the 2020 U.S. presidential election.

Marianne Deborah Williamson is an American author, spiritual leader, political activist, and candidate for president of the United States. A frequent guest on The Oprah Winfrey Show, she is the author of fourteen books, including four New York Times number one bestsellers. She is also the founder of Project Angel Food, a volunteer food delivery program that serves home-bound people with HIV/AIDS and life-threatening illnesses, as well as the co-founder of the Peace Alliance, a nonprofit education and advocacy organization.

Andrew Yang is an American businessman, attorney, lobbyist, and politician. Yang was a candidate in the 2020 Democratic Party presidential primaries and the 2021 New York City Democratic mayoral primary. He is the co-chair of the Forward Party, alongside former New Jersey Governor Christine Todd Whitman.

Joseph Robinette Biden Jr. is an American politician who is the 46th and current president of the United States. A member of the Democratic Party, he previously served as the 47th vice president from 2009 to 2017 under President Barack Obama and represented Delaware in the United States Senate from 1973 to 2009.

Bernard Sanders is an American politician serving as the senior United States senator from Vermont, a seat he has held since 2007. He was the U.S. representative for the state's at-large congressional district from 1991 to 2007. Sanders is the longest-serving independent in U.S. congressional history. He has a close relationship with the Democratic Party, having caucused with House and Senate Democrats for most of his congressional career. A self-described democratic socialist, he is often seen as a leader of the progressive movement in the United States. Sanders unsuccessfully sought the Democratic Party nomination for president of the United States in 2016 and 2020, finishing in second place in both campaigns. Before his election to Congress, he was mayor of Burlington, Vermont.

Michael Rubens Bloomberg is an American businessman, politician, philanthropist, and author. He is the majority owner, co-founder and CEO of Bloomberg L.P. He was Mayor of New York City from 2002 to 2013, and was a candidate for the 2020 Democratic nomination for President of the United States. He has served as chair of the Defense Innovation Board, an independent advisory board that provides recommendations on artificial intelligence, software, data and digital modernization to the United States Department of Defense, since June 2022.

Elizabeth Ann Warren is an American politician and former law professor who is the senior United States senator from Massachusetts, serving since 2013. A member of the Democratic Party and regarded as a progressive, Warren has focused on consumer protection, equitable economic opportunity, and the social safety net while in the Senate. Warren was a candidate in the 2020 Democratic Party presidential primaries, ultimately finishing third.

Tulsi Gabbard is an American politician, United States Army Reserve officer and political commentator who served as the U.S. representative for Hawaii's 2nd congressional district from 2013 to 2021. Gabbard was the first Hindu member of Congress and also the first Samoan-American voting member of Congress. She was a candidate for the Democratic nomination in the 2020 United States presidential election, before leaving the party and becoming an independent in October 2022.

The Wayback Machine is a digital archive of the World Wide Web founded by the Internet Archive, a nonprofit based in San Francisco, California. Created in 1996 and launched to the public in 2001, it allows the user to go "back in time" and see how websites looked in the past. Its founders, Brewster Kahle and Bruce Gilliat, developed the Wayback Machine to provide "universal access to all knowledge" by preserving archived copies of defunct web pages.