Realtime NOMINATE Ideology and Related Data
This section contains download links for NOMINATE scores and other data that we make available to the public, in addition to tutorial articles explaining how to generate popular ancillary data from our data exports. Please continue by choosing the data you wish to download.
Data is updated live, as new votes are taken. If you are an institutional user of our data and wish to be notified before major or breaking changes are made to the data, please see the About page.
Ancillary Data and Analyses
We are pleased to present a collection of articles discussing data and analyses that make use of NOMINATE / voteview.com, along with the source code used to produce the analyses. We hope these will be of use to scholars, journalists, and students interested in producing analysis using our data:
Data
Data - Congressional Parties: This article describes the data fields made available in the "Congressional Parties" data download
Data - Congressional Votes: This article describes the data fields made available in the "Congressional Votes" data download
Data - Member Ideology: This article describes the data fields made available in the "Member Ideology" data download
Data - Members' Votes: This article describes the data fields made available in the "Members' Votes" data download
Party Unity Scores: Provides updated versions of the classic Voteview calculations of party unity scores. Figures and the underlying data are available for download.
Presidential Support Scores: Presents member- and chamber-level presidential support score data. Shows how scores are calculated. Provides download links, summary plots, and a comparison to previously published scores.
Complete database (approx. 500MB zipped): We expect that most journalists, academics, and interested users should use the main data downloads listed above. However, for users interested in building a website based on Voteview.com data, we make available a complete dump of our MongoDB database. This release is updated weekly and is provided without warranty.
Browse prior database releases: We retain archival copies of our complete database release. We recommend users only use the most current version of our data. These archival releases may be missing new rollcall or member data, and may also be missing corrections made to existing data.
Analysis
Attendance of Senators and House Members Running for President: Track the rate of participation in roll call votes of Members of Congress who are running for President in 2020
Joe Biden’s Party Loyalty in the Senate: This article calculates Joe Biden's career rate of party loyalty in the Senate and compares that rate to the party loyalty rates of all other Democratic senators with whom he served.
Polarization in Congress: Provides updated versions the classic Voteview plots of party mean DW-NOMINATE scores over time. Figures and the underlying data are available for download.
Senate support for presidential executive branch nominees since 1989: Putting Democratic senators' support for Trump appointees in recent historical context.
Why is Alexandria Ocasio-Cortez estimated to be a moderate by NOMINATE?: This article explains why Alexandria Ocasio-Cortez is estimated to be a moderate by NOMINATE as of June 2019
Help
Clausen, Peltzman, and Issue codes for 1st to 113th Congresses: This short article provides descriptions for the numeric Clausen, Peltzman, and Issue codes supplied with our data.
