The Democratic and Republican parties don't have to accept delegates from states that knowingly violate their rules. That is how the parties enforce uniformity.
why are you telling me this? Do you favor control of presidential elections by centralized party rule? Not me.
If the states want to move their primary dates - let them. The states should have the say, not an artificial party apparatchik
There are no sacred cows, and especially not for the diseased US 2 party system