RS 18:410.3: Purpose and nature of party primary elections

A. For general elections, political parties shall make all nominations of candidates for party primary office by direct primary elections held pursuant to this Part. In party primary elections, each voter voting in such election may vote only for a candidate who is affiliated with the same party as the voter.

B. Voters not affiliated with a political party may vote in a major party primary if a party primary ballot is selected by the voter prior to casting his ballot, but such a voter may vote only in one major party primary. If an unaffiliated voter chooses to vote in the first party primary of one political party, the unaffiliated voter shall not vote in the second party primary of another political party.