Looks like the RINOs know they can't win a closed primary.
And now we know why so many Republican Party primaries open. It's to allow crypto-liberals to infiltrate the Republican Party and shift it from being actively conservative to being nothing more than a lap dog for the Democrat Party. People who say America have only one ruling political party are correct! Just listen how GOPe "Republicans" squeal whenever a conservative runs and actually gets elected. Congress (Democrats & Republicans) has become a self-serving inbred cabal of corrupt evil people.