Presidential Primary Date:  February 24, 2024

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Open or Closed:  Open

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How to Vote in the Primary:  Register to Vote - SC Votes - South Carolina Election Commission

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Primaries and Caucuses - Rock the Vote

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South Carolina has open primaries, but you are only allowed to participate in one party’s primary (this affiliation lasts only for primaries, except in the case of a runoff where you must vote the same as you voted in the primary). 

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South Carolina does not have registration by party.  In primaries, you can vote in only one party’s primary.