Sources: The Hill
Senator Bernie Sanders suspends his presidential campaign, leaving former Vice President Joe Biden as the presumptive nominee of the Democratic Party for President in the general election. 2020-04-8
U.S. Senator Bernie Sanders says he will assess his presidential campaign after losing three more states (Florida, Illinois, and Arizona) to former Vice President Joe Biden in the Democratic primaries of the 2020 presidential election. Biden has 1,181 delegates, while Sanders has 885. The minimum required to win the nomination is 1,991. 2020-03-18
Former U.S. Vice President Joe Biden wins all three states, increasing his delegate count to 1,180, while U.S. Senator Bernie Sanders now has 885. The minimum required to win the nomination is 1,991. 2020-03-17
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
Civil rights activist Jesse Jackson endorses Vermont U.S. Senator Bernie Sanders in his campaign for the Democratic nomination for the presidency. 2020-03-8
Former Vice President Joe Biden is the night's big winner with victories in ten states, while Senator Bernie Sanders wins four and former New York City Mayor Michael Bloomberg wins American Samoa. 2020-03-3
A recanvass of the 2020 Iowa Democratic caucuses show Bernie Sanders and Pete Buttigieg at an effective tie, with a margin of 0.0004 percentage points of state delegate equivalents between the two candidates. The Sanders campaign has requested a recount, which may change the initial outcome of the caucus. 2020-02-19
Vermont Senator Bernie Sanders narrowly defeats former South Bend, Indiana mayor Pete Buttigieg to win the primary. 2020-02-11