What is the difference between a closed primary and an open primary in Texas?

Answer 1

Closed primary: only the registered voters of the party running for nomination may vote.

Open Primary: all registered voters, regardless of party affiliation, may vote to nominate a candidate.

Answer 2

In a closed primary in Texas, voters can only participate in the primary of the party they are registered with. In an open primary, voters can choose which party's primary they want to participate in regardless of their party affiliation.

Answer 3

In an open primary anyone can vote for any candidate in either party.

In a closed primary you can only vote for someone in your registered party.