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Blorbo rule
(feddit.de)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
What rules are these?
The DNC changed their rules to make it harder to get on the primary if they didn't like you. It's difficult finding the timeline of DNC rules, so take that with a grain of salt.
I'm assuming those were put in to exclude one particularly popular leader with a good track record.