California's 30th Congressional District on the 2025 AB 604 line. Observed returns, census demographics, turnout, and the model-derived axes. Descriptive — no targeting or strategy layer.
Street labels by default. Switch to the gray canvas when the fill matters more than the ground under it.
A shared scale pairs best with equal interval: quantile breaks over a pooled domain get set by the smaller layers, so a candidate who led most tracts flattens into one or two fills.