Caucus is the most local level of party organization. The most important thing we do is elect delegates to County Assembly. At County Assembly, candidates seek the votes of 1/3 of delegates in order to appear on the June Primary ballot. So caucus is the first step in choosing who will be on the June ballot.
We also elect precinct organizers, submit platform planks (issue positions), recruit election judges, hear from candidates, and most importantly, we get to see our neighbors.