Simple solution.
The Republican Party can pay for its own Primary elections.
Today, the states pay for our elections, or, as in the Iowa Caucus, they provide hundreds of state buildings without charge.
If we refuse state money, then we can refuse the state election laws that come with their money.
Private mail-in ballots or password Internet voting would work just fine.
Say...
...didn't we meet at the NSA Annual Ball last year?