Typically, party caucuses are held in each county in mid-March, where voters begin the process of choosing delegates.
It won’t be the first time Missouri has altered how it selects its presidential contenders.
In 1986, lawmakers approved a plan to hold a presidential preference primary in 1988 in a bid to raise the profile of then-U.S. Rep. Richard Gephardt, D-Mo., who was running for the White House.
In 1998, the Legislature approved a bill with no expiration date that holds a presidential preference primary every four years. Senate Bill 709 was signed by then-Gov. Mel Carnahan, a Democrat.
Missouri used presidential caucuses in 1992 and 1996, but has held primaries since 2000.
In 2020, former Vice President Joe Biden won the Missouri Democratic presidential primary with 60% of the vote. President Donald Trump swept the GOP primary with nearly 97% of the vote, and carried the state in the general election.
The legislation is House Bill 1878.
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