Speaker of the House Nancy Pelosi officially endorses former Vice President Joe Biden, the presumptive nominee in the Democratic Party primaries. 2020-04-27
Maryland postpones its primary from April 28 to June 2, becoming the fifth state to do so. 2020-03-17
Ohio was scheduled to vote today, but the election was postponed until June 2 due to the coronavirus pandemic. The delay capped hours of confusion in which the election was called off by the state's governor, Mike DeWine, only for a judge to then rule that he did not have the authority to do so. The state's health director, Amy Acton, then called off the election on the grounds of a health emergency. 2020-03-17
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
Registered Democrats and independents in the U.S. state of New Hampshire vote in the first official Democratic presidential primary of the election year. It comes after the controversial Iowa caucuses that occurred a week earlier. 2020-02-11
Significant irregularities in the Democratic Party process are reported with an app being blamed for widespread confusion and delayed results. 2020-02-3
U.S. Senator Michael Bennet from Colorado announces he is running for the Democratic Party's nomination to be President of the United States in the 2020 presidential election. 2019-05-2
U.S. Representative for Massachusetts Seth Moulton announces he is running for the Democratic Party's nomination in the 2020 US presidential election. 2019-04-22
Media reports indicate former United States Vice President and Senator Joe Biden has decided that next week he will announce his participation in the race for Democratic Party's nomination in the 2020 United States presidential election. 2019-04-19