For the 2020 election cycle, Missouri's presidential preference primary election is Tuesday, March 10. Primary voters may select only one party's ballot. Voters who do not wish to give a political party preference may request an issues-only ballot, if one is available in the voter's jurisdiction.

The five established parties in Missouri are: Republican, Democratic, Libertarian, Constitution and Green.

Presidential preference primary elections are part of the nominating process in the state for the United States presidential elections. In a PPP, voters registered with one of Missouri's major political parties express their preference for the presidential candidate they want to see representing their party on the general election ballot in November.

The election however, Secretary of State Jay Ashcroft, said should be done away with as it has no impact on who appears on the general election ballot in November thanks to caucuses used today. While testifying this month before the House Budget Committee, Ashcroft described the state's PPP as “an election that has really no bearing on the presidential race.”

“We spend $9.1 million of taxpayer money,” he said “... Then we ignore the results and we have a caucus that actually chooses delegates to choose who goes to the national conventions.”

If state leaders decide to do away with the election, it would not impact this election cycle.

Missouri’s legislature adopted the presidential preference primary in the late 1980s. In 1998, state leaders approved a PPP with no expiration date. The state has since held presidential preference primaries in 2000, 2004, 2008, 2012 and 2016.

On the State's PPP, there are 33 candidates made up of 5 Republicans, 22 Democrats, 1 Libertarian, 3 Green Party members and 2 Constitution party members. To learn more about who is on the ballot, visit

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