10.7910/DVN/AP54NEShor, BorisBorisShor0000-0002-4983-0166University of HoustonHarvard Dataverse2020Social SciencesShor, BorisBorisShorUniversity of Houston2020-07-032020-07-0310.1017/s0003055411000153127861543782141685application/pdftext/tab-separated-valuesapplication/pdf1.0CC0 1.0This version of the Shor-McCarty state legislative aggregate ideology data is being released as an update to the data underlying Shor and McCarty 2011. These are based on individual-level ideal point estimates described fully in that article. Estimates are all in Shor-McCarty NPAT common ideological space to facilitate explicit comparisons across time and between states. The data spans 1993 through 2018, with 2,268 chamber-years of data (compared with 2,025 in the previous release).