Biden and Sanders have survived a field of two dozen major candidates. Four of those candidates – Pete Buttigieg, Amy Klobuchar, Michael Bloomberg and Elizabeth Warren – have dropped out in the last week.
Here’s what you need to know about the March 10 primaries:
Which states are voting Tuesday
Voters in Idaho, Michigan, Mississippi, Missouri, North Dakota and Washington will be voting.
Who can vote:
- In Idaho: Registered Democratic voters and "unaffiliated" voters may vote in the Democratic primary. Registered Republicans can vote in the Republican primary.
- In Michigan: According to the Michigan Secretary of State's office, Michigan's presidential primary is a closed primary. There is no political party registration requirement in Michigan Election Law. Any Michigan registered voter can participate in the primary.
- In Mississippi: Mississippi's primaries are open, meaning a voter does not have to register with a political party to vote in a primary.
- In Missouri: Missouri has open primaries.
- In North Dakota: North Dakota has open primaries.
- In Washington: Washington votes by mail.
What time do the polls open/close
- Idaho: 8 a.m. – 8 p.m.
- Michigan: 7 a.m. – 8 p.m.
- Mississippi: 7 a.m. – 7 p.m.
- Missouri: 6 a.m. – 7 p.m.
- North Dakota: The voting hours in North Dakota vary by county.
- Washington: Voters must deposit ballots in official drop boxes by 8 p.m. on Election Day.
How many delegates will be awarded:
There will be 352 Democratic delegates awarded in Tuesday’s primary elections. Republicans will be awarding 242 delegates.
Who is ahead in the polls:
Biden is ahead in the Real Clear Politics average of polls by 7.5% over Sanders. The polls were conducted between March 1 and March 5.