After the conservatives did so well with Newt in the 1994 Republican Revolution, the GOPe organized and started changing the rules to have open primaries/crossover votes.
They wanted to water down the conservative vote and they were successful. Now they are mad about unintended consequences! I hope the GOPe likes what they got for trying to kick the conservative base out of the party. Ha!
The whole 19 candidate pre-primary circus is due to the RNC central commmittee creating rules to help a single establishment candidate.
It turns out central planning doesn’t work for free elections either.