This proves that the apellation RINO Republican In Name Only is true and accurate... they would rather declare as Democrats than let their base make the call as to who the candidates will be.
Some on FR may not know why primaries were ever started at the end of the 19th century: it was to take the control of the parties out of the hands of sleezy politicians. Now we see a huge movement for 'open primaries'... this overturns the whole point of primaries - to let the people choose! With open primaries the Democraps - who are monolithic and almost always know who their candidate will be - can crossover into Republican primaries and mess up the whole process. BUT NOTE: the Repubbies never complain about that.
I propose that - if the parties are going to name super delegates and engineer brokered conventions - it is time for the individual states to stop charging the tax-paying voters with primary election costs. Let's either have honest elections or let's do something about it!