U.S. Political Stats [via CQ Press]
U.S. Political Stats contains over 225,000 data series–or data measures over time about people, places, and policies–across 10 distinct political science data categories, aligned with a typical political science curriculum. The data series span as far back as 1982, and are updated on a timely basis in accordance with the collection and publication schedules of original sources. Detailed source information, with links where applicable, is provided for every data series.