State Partisan Balance Data, 1937 - 2011

Dataset includes number and percent of state legislators who are Democrats and Republicans, party control of state legislatures and governor’s offices, and different measures of party control of state institutions for the years 1937 to 2011. Also includes variables that indicate what percentage of legislators are up for election in a year and whether there is a gubernatorial election. “Source Files” give documentation on coding and primary sources used to construct the data