113th Senate — GGUM scores
GGUM ideal point estimates for the 113th Senate (members scored: 103 of 105; max PSRF: 1.021).
Download
Download S113-ggum-scores.csv — 105 members, 25 columns (Voteview metadata + GGUM θ, θ SD, PSRF).
Off-diagonal members
The following 2 members fall more than 2.5σ off the OLS fit of GGUM θ on W-NOMINATE dim-1. We flag these as diagnostic cases where the two scalings most disagree.
| Member | Party | State | nominate | GGUM θ | residual |
|---|---|---|---|---|---|
| FLAKE | R | AZ | +0.85 | +1.77 | -1.71 |
| WARREN | D | MA | -0.74 | -1.47 | +0.96 |
Placements worth a second look
GGUM’s placement of the following members differs from what their established political reputations might lead a reader to expect. We draw attention to these cases so that researchers can consider them before using the estimates for a particular analysis; we are not alleging error.
- ROBERTS. Pat Roberts is commonly viewed as a low-key, institutionalist Agriculture Committee chair, not a movement ideologue. GGUM places him among the chamber’s most extreme conservatives, rivaling Cruz and Lee in GGUM score.
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The prose on this page was drafted with Anthropic’s Claude Opus 4.7, with plausibility audits by Claude Sonnet 4.5 subagents. The author edited and reviewed throughout.