Voters in Arizona, Florida, and Illinois go to the polls in their primary elections. 2020-03-17
Joe Biden is declared winner of the Washington Democratic primary. 2020-03-16
The first one-on-one debate of the 2020 Democratic presidential primaries takes place between former Vice President Joe Biden and Senator Bernie Sanders in Washington, D.C., instead of Arizona as originally scheduled and without an audience as a result of the ongoing coronavirus pandemic. 2020-03-15
Voters in six U.S. states cast their ballots in the primary elections. Former Vice President Joe Biden wins the Mississippi, Missouri, Michigan, and Idaho primaries and is ahead in Washington (which has not finished tallying votes), while U.S. Senator Bernie Sanders wins North Dakota. 2020-03-10
After a poor performance on Super Tuesday, former New York City Mayor Michael Bloomberg suspends his presidential campaign and endorses former Vice President Joe Biden. 2020-03-4
California Senator Kamala Harris drops out of the presidential race, citing a lack of funds for her campaign. 2019-12-3
New York Senator Kirsten Gillibrand drops out of the presidential race. 2019-08-28
U.S. Representative for Massachusetts Seth Moulton announces his suspension of his 2020 presidential campaign. 2019-08-23