Biden and Trump have already secured enough delegates for each party's nomination, setting up the first presidential rematch since 1956.
Sen. Bernie Sanders won the North Dakota Democratic caucuses in 2016 and 2020.
'Inciting political violence': President Trump posts video with images of bound Biden
'Inciting political violence': President Trump posts video with images of bound Biden
Also on Saturday, Connecticut allowed in-person early voting for the first time ahead of an election, years after nearly every state in the country offered voters the option to vote early.
Saturday is the last day of early voting before Tuesday's presidential primary, but turnout so far has been low. After his first three days of voting (there was no early voting on Friday due to the Good Friday holiday), his 13,476 voters cast their votes in person, out of more than 1.2 million registered Democrats and Republicans. did.
Although turnout was relatively low as a result, state officials said they were satisfied with the new system and said there were no major problems.
“Connecticut voters answered our call when we asked voters to help us test our systems and make our voices heard,” said Secretary of State Stephanie Thomas.
Currently, only four states – Alabama, Delaware, Mississippi and New Hampshire – do not allow early voting but may offer the option to eligible absentee voters. Delaware had previously allowed early voting, but a state court ruled on February 23 that it was unconstitutional.