Is There a Partisan in Cook County?

There are so many people who are extremely partisan, why aren't they running and winning those elections? That's the puzzling thing. Weare tore a set of null findings. In these very close races, when you don't see ny effect on observed behavior,. You don't see not just any effects on average across the elections, but at all, kinds of different sub sets of elections. Why isn't then the most natural explanation for the findings on offer here, that these people are are public stewards?