U.S. Capitol Building ~ photo available on Wikimedia.com
The United States government produces a large amount of data. A list of agencies that compile statistics can be found here. For U.S. election data and statistics, visit the library's Election Research Subject Guide. For data / statistics related to the U.S. Congress, visit the the library's U.S. Congress Subject Guide. For opinion research data, visit the library's general Political Science Subject Guide.