Voters in Arizona, Florida, and Illinois go to the polls in their primary elections. 2020-03-17
Incumbent U.S. President Donald Trump wins enough delegates to clinch the Republican nomination. 2020-03-17
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
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
The first nominating contest in the Democratic Party and Republican Party primaries takes place in the U.S. state of Iowa. Eleven Democratic Party candidates will challenge for 49 delegates, while incumbent President Donald Trump will face two Republican challengers for 40 delegates, regarding the 2020 United States presidential election 2020-02-3
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. Representative for Massachusetts Seth Moulton announces he is running for the Democratic Party's nomination in the 2020 US presidential election. 2019-04-22