In caucus states the government (sec. of state) plays no role in the Club's process for candidates.
The Clubs run the entire operation.... gather the results and announce the winners/losers with NO oversight. The Club rules the entire process.
This tweet from ABC journalist is important to see what happened.
A - They don't like/want Bernie
B - They need to cover for Biden
C - They construct a "Never Bernie" narrative.
These are private decisions internal to the private Club and those who control it. There is no oversight.
Pete Buttigieg is proclaimed the winner (so far). This is narrative engineering that allows the promotion of Buttigieg and the diminishment of Bernie.
However, once you see the strings on the marionettes, you can never go back to a time when you didn't see them.