On April 17, the Brevard County Democratic Party resolved that the Florida Democratic Party should let independents vote in its primaries. Brevard County is the ninth most populous county in Florida, and contains Melbourne and Cape Canaveral. This resolution was earlier passed by the Miami-Dade County Democratic Party. See this story.
The party has a First Amendment freedom of association right to decide for itself whether to let independents vote in its primaries; the state government cannot interfere.
Again –
Parties are factions/fractions of PUBLIC Electors-Voters.
Nominations for PUBLIC offices is PUBLIC business.
Too many SCOTUS HACK MORONS to count since 1968 Williams v Rhodes – 51 years and counting.