Missouri has open primaries, I hate ‘em.
At every level, good people can’t get on governing boards because the democrats will swarm the republican primary and vote for the weakest candidate, a la Todd Akins.
Alabama has open primaries also, but there’s a move to change that:
https://www.al.com/news/2022/07/from-open-to-closed-why-alabama-republicans-are-pushing-to-change-primary-elections.html