Democratic lawmakers have faced eruptions of anger at town hall meetings across the country this week, as constituents have coupled their fury over President Donald Trump’s actions with deep frustration over what they see as a feckless Democratic response.
The DNC doesn’t control state elections, the local democratic parties do. It is up to the state parties to run their primary (or caucus) as they choose. The DNC can influence primaries with spending, but they don’t make the rules for state-levrl primaries.
And are the local parties not subordinate to the DNC?
Not in Minnesota https://dfl.org/about/ the party is independent, I think it’s the same in other states. The way the DNC can influence elections in primaries is with endorsements and ad support.