Analysis of S.D. legislature shows low partisanship, GOP divides

I conducted an extensive quantitative analysis of voting patterns in the South Dakota Legislature, using a dataset of every single vote placed there for a three-year period. The first quantitative analysis of voting there, it showed Democrats and Republicans voting together at high rates despite differences on a few key issues. It also revealed that a more significant divide was between mainstream and conservative Republicans. I also produced visualizations of the data:

Additional visualizations can be found here, or by clicking on the picture.

Here’s the article:

Later, I revisited the issue to create a statistical model predicting how often two lawmakers would vote together based on ideological difference and committee membership.