An open primary allows any voter to participate, while a closed primary is only open to party members. This is the primary difference between the two.
The process by which voters choose their preference for a party's candidate or a candidate in general in an upcoming election is known as a primary election, or primaries.
This could also be referred to as a primary election where a candidate to represent a political party is chosen before the general election.
The reason closed primaries are preferred by parties is because they guarantee that the nominee will be chosen by voters who genuinely support the party. Any voter may cast a ballot in an open primary.
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