This is interesting, although I don’t reallly know enough to understand what is meant by comparing polling places. It would be interesting to see graphs at other levels of aggregation also.
Lots more pretty graphs here. The states shouldn’t be ordered alphabetically (I’d prefer increasing order of support for PAN, for example), and I’d like the grid lines to be much lighter (in the individual-state graphs, the grid lines really obscure the dots), but that’s just me being picky. The next step is to do some comparisons to 2000. Are the polling places the same? If so, it’s an interesting graphical challenge because now we have 6 vote proportoins (after scaling to sum to 1 in each election, that’s 4 different outcomes) for each district.