Who you voted for isn't public, but if you voted in a primary, it is often public which party's primary you voted in. Voting in a particular party's primary doe

Who you voted for isn't public, but if you voted in a primary, it is often public which party's primary you voted in. Voting in a particular party's primary doesn't necessarily mean you're an actual supporter of that party though. I've heard of plenty of cases where members of one party voted in the other party's primary because they wanted the less-electable candidate to be that party's nominee.