The DNC sent out orders. I’ll bet part of the order was to stagger the announcements for maximum effect and to give it legitimacy.
Yup, the domino effect; a rolling play-out. They really want that bad economy, right up to the election in November. Trump will declare the economic embargo over on Easter, but, mark my words, the Dem states will insist that their State’s citizens continue to suffer to the max economically, in order to stretch out the misery in hopes that Trump will tank at election time if the economy doesn’t recover.