CNN —

       Here’s a look at the 2020 presidential candidates and key dates in their campaigns.

       Republican Candidates Donald Trump - 45th President of the United States. Running for reelection.

       Primary Campaign Committee - Donald J. Trump for President, Inc.

       Website - https://www.donaldjtrump.com/

       January 20, 2017 - The day he is inaugurated, Trump submits paperwork to the Federal Election Commission to be eligible to run for reelection in 2020.

       February 27, 2018 - The Trump campaign announces Brad Parscale, the digital media director of his 2016 campaign, has been hired to run his reelection bid.

       March 17, 2020 - Earns enough delegates needed to win the Republican nomination for president.

       Bill Weld - Former Massachusetts Governor

       Primary Campaign Committee - 2020 Presidential Campaign Committee

       Website - https://www.weld2020.org/

       April 15, 2019 - Announces he is running for the Republican nomination for president on CNN’s The Lead with Jake Tapper.

       March 18, 2020 - Weld announces he is suspending his presidential campaign.

       Joe Walsh - Former US Representative from Illinois

       Primary Campaign Committee - Walsh 2020

       Website - https://www.joewalsh.org/

       August 25, 2019 - Announces he is running for the Republican nomination for president on ABC’s “This Week.”

       February 7, 2020 - Walsh tells CNN’s John Berman on “New Day” that he is ending his candidacy for president.

       Mark Sanford - Former Governor of South Carolina

       Primary Campaign Committee - Sanford 2020

       Website - https://www.marksanford.com/

       September 8, 2019 - Announces he will launch a primary challenge for the 2020 Republican nomination on “Fox News Sunday.”

       November 12, 2019 - Announces he is suspending his presidential campaign.

       Democratic Candidates John Delaney - US Representative from Maryland’s 6th District

       Primary Campaign Committee - Friends of John Delaney

       Website - https://www.johnkdelaney.com

       July 28, 2017 - In a Washington Post op-ed, Delaney announces he is running for president.

       January 31, 2020 - Delaney announces that he is ending his 2020 presidential campaign.

       Andrew Yang - Entrepreneur, founder of Venture for America

       Primary Campaign Committee - Friends of Andrew Yang

       Website - https://www.yang2020.com/

       February 2, 2018 - Announces he is running for president via YouTube.

       February 11, 2020 - Announces he is suspending his presidential campaign.

       Richard Ojeda - Former State Senator from Virginia

       Primary Campaign Committee - Ojeda for President

       November 12, 2018 - Announces he is running for president at the Korean War Veterans Memorial in Washington, DC.

       January 25, 2019 - Announces he is suspending his campaign for president.

       Julián Castro - Former Mayor of San Antonio, Texas, and former Secretary of Housing and Urban Development (HUD) under US President Barack Obama.

       Primary Campaign Committee - Julián for the Future Presidential Exploratory Committee

       Website - https://www.julianforthefuture.com/

       January 12, 2019 - Officially announces he is running for president.

       January 2, 2020 - Announces he is suspending his presidential campaign.

       Tulsi Gabbard - US Representative from Hawaii’s 2nd District

       Primary Campaign Committee - Tulsi Now

       Website - https://www.tulsi2020.com/

       January 11, 2019 - “I have decided to run and will be making a formal announcement within the next week,” the Hawaii Democrat tells CNN’s Van Jones.

       February 2, 2019 - Gabbard officially launches her 2020 presidential campaign at an event in Hawaii.

       March 19, 2020 - Ends her campaign for president, and endorses former Vice President Joe Biden.

       Kamala Harris - US Senator from California

       Primary Campaign Committee - Kamala Harris For The People

       Website - https://kamalaharris.org/

       January 21, 2019 - Announces she is running for president in a video posted to social media at the same time she appears on ABC’s “Good Morning America.”

       December 3, 2019 - Harris ends her 2020 presidential campaign.

       Marianne Williamson - Author and activist

       Primary Campaign Committee - Marianne Williamson for President

       Website - https://www.marianne2020.com/

       January 28, 2019 - Williamson formally launches her 2020 presidential campaign with a speech in Los Angeles.

       January 10, 2020 - Announces she is ending her presidential campaign.

       Cory Booker - US Senator from New Jersey

       Primary Campaign Committee - Cory 2020

       Website - https://corybooker.com/

       February 1, 2019 - Releases a video announcing his candidacy, appears on the talk show, “The View,” participates in multiple radio interviews and holds a press conference in Newark, New Jersey.

       January 13, 2020 - Booker ends his presidential campaign.

       Elizabeth Warren - US Senator from Massachusetts

       Primary Campaign Committee - Warren for President, Inc.

       Website - https://elizabethwarren.com/

       February 9, 2019 - Warren officially announces she is running for president at a rally in Lawrence, Massachusetts.

       March 5, 2020 - Warren ends her presidential campaign.

       Amy Klobuchar - US Senator from Minnesota

       Primary Campaign Committee - Amy For America

       Website - https://www.amyklobuchar.com/

       February 10, 2019 - Announces her presidential bid at a snowy, freezing outdoor event in Minneapolis.

       March 2, 2020 - Klobuchar ends her presidential campaign.

       Bernie Sanders - US Senator from Vermont

       Primary Campaign Committee - Bernie 2020

       Website - https://berniesanders.com

       February 19, 2019 - Announces that he is running for president, during an interview with Vermont Public Radio.

       April 8, 2020 - Announces he is suspending his presidential campaign.

       Jay Inslee - Governor of Washington

       Primary Campaign Committee - Inslee for America

       Website - https://jayinslee.com/

       March 1, 2019 - Announces his presidential bid in a video.

       August 21, 2019 - Announces he is suspending his presidential campaign.

       John Hickenlooper - Former Governor of Colorado

       Primary Campaign Committee - Hickenlooper 2020

       Website - https://www.hickenlooper.com/

       March 4, 2019 - Hickenlooper launches his campaign with a biographical video entitled, “Standing Tall.”

       March 7, 2019 - Officially kicks off his campaign with a rally in Denver.

       August 15, 2019 - Hickenlooper ends his bid for the Democratic presidential nomination.

       Beto O’Rourke - Former US Representative from Texas

       Primary Campaign Committee - Beto for America

       Website - https://betoorourke.com

       March 14, 2019 - Announces his presidential bid in a video.

       November 1, 2019 - Announces he is ending his presidential campaign.

       Kirsten Gillibrand - US Senator from New York

       Primary Campaign Committee - Gillibrand 2020

       Website - https://kirstengillibrand.com/

       March 17, 2019 - Officially declares her Democratic candidacy for president via YouTube.

       August 28, 2019 - Announces that she is ending her campaign.

       Wayne Messam - Mayor of Miramar, Florida

       Primary Campaign Committee - Wayne Messam for America

       Website - https://wayneforamerica.com/

       March 28, 2019 - Officially declares his Democratic candidacy for president in a video released to CNN.

       November 20, 2019 - Messam announces that he is suspending his campaign.

       Tim Ryan - US Representative from Ohio’s 13th District

       Primary Campaign Committee - Tim Ryan for America

       Website - https://timryanforamerica.com/

       April 4, 2019 - Announces his presidential bid during an appearance on ABC’s “The View.” The televised announcement came just minutes after Ryan’s campaign website went live.

       October 24, 2019 - Announces he is dropping out of the presidential race.

       Eric Swalwell - US Representative from California’s 15th District

       Primary Campaign Committee - Swalwell for America

       Website - https://ericswalwell.com/

       April 8, 2019 - Announces he is running for president during a taping of the “Late Show with Stephen Colbert.”

       July 8, 2019 - Announces he is dropping out of the presidential race.

       Pete Buttigieg - Mayor of South Bend, Indiana

       Primary Campaign Committee - Pete for America

       Website - https://peteforamerica.com/

       April 14, 2019 - Officially announces he is running for president during a rally in South Bend, Indiana.

       March 1, 2020 - Announces he is suspending his presidential campaign.

       Seth Moulton - US Representative from Massachusetts’ 6th District

       Primary Campaign Committee - Seth Moulton for America

       Website - https://sethmoulton.com/

       April 22, 2019 - Announces, via campaign video, he is running for president.

       August 23, 2019 - Announces that he is ending his presidential bid during a speech at the Democratic National Committee summer meeting in San Francisco.

       Joe Biden - Former US Vice President

       Primary Campaign Committee - Biden for President

       Website - https://joebiden.com/

       April 25, 2019 - Announces he is running for president in a campaign video posted to social media.

       Michael Bennet - US Senator from Colorado

       Primary Campaign Committee - Bennet for America

       Website - https://michaelbennet.com/

       May 2, 2019 - Announces his candidacy during an interview on CBS’ “This Morning.”

       February 11, 2020 - Announces he is ending his presidential campaign.

       Steve Bullock - Governor of Montana

       Primary Campaign Committee - Bullock for President

       Website - https://stevebullock.com/

       May 14, 2019 - In a video posted online, announces that he is running for president.

       December 2, 2019 - Announces he is ending his presidential campaign.

       Bill de Blasio - Mayor of New York City

       Primary Campaign Committee - de Blasio 2020

       Website - https://billdeblasio.com/

       May 16, 2019 - Announces he is running for president in a video posted to YouTube.

       September 20, 2019 - Announces that he is ending his campaign.

       Joe Sestak - Former US Representative from Pennsylvania’s 7th District

       Primary Campaign Committee - Joe Sestak for President

       Website - https://www.joesestak.com/

       June 23, 2019 - Announces his candidacy in a video posted to his website.

       December 1, 2019 - Announces he is ending his presidential campaign.

       Tom Steyer - Former hedge fund manager and activist

       Primary Campaign Committee - Tom 2020

       Website - https://www.tomsteyer.com/

       July 9, 2019 - Announces his candidacy in a video posted online.

       February 29, 2020 - Announces he is ending his presidential campaign.

       Deval Patrick - Former Governor of Massachusetts

       Primary Campaign Committee - Deval for All

       Website - https://devalpatrick2020.com/

       November 14, 2019 - Announces his candidacy in a video posted to his website.

       February 12, 2020 - Announces he is ending his presidential campaign.

       Michael Bloomberg - Former New York Mayor

       Primary Campaign Committee - Mike Bloomberg 2020

       Website - https://www.mikebloomberg.com/

       November 24, 2019 - Officially announces his bid in a letter on his campaign website.

       March 4, 2020 - Bloomberg ends his presidential campaign.