MC3-GGUM Estimates of Congressional Ideology

This dataset provides MC3-GGUM ideology estimates for members of Congress (currently estimates for the 107th to the 116th Congresses are available). For details of the GGUM model and the MC3 estimation algorithm, please see the related publication page. When using this dataset, please cite both the dataset and the related publication as follows (the “Cite” button above will generate BibTeX entries for you):

You can download the dataset and its codebook here:

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JBrandon Duck-Mayr
JBrandon Duck-Mayr
Assistant Professor of Government

I research American political institutions, with a particular focus on judicial decision making and the role of law in judicial politics.