The 119th Congress, scored

Every recorded vote and every bill that reached one, pulled from public sources and scored on a single social-policy axis. Party is the obvious split, but members also cluster into factions within each party — Freedom Caucus, Progressive Caucus, New Dems, and others — visible in how they vote, cosponsor, and sit on committees.

Members scored
536
of 537 serving
Factions found
12
534 members clustered
Bills on the axis
62
of 482 that reached a vote
Bimodality
0.92
Two-humped: the body has no middle

Congress as factions, not a continuum

Twelve behavioral clusters recovered from roll-call ideal points, cosponsorship network position, and committee assignments — without using the woke rubric or caucus lists as inputs. Each dot is one member, placed by a 2D projection of those behavioral features and colored by faction. Hover or select a cluster to inspect it.

D ProgressiveBehavioral dimension 1 (PC1 74%)Behavioral dimension 2 (PC2 26% of feature variance)

House Democrat: D Progressive

Members135
Silhouette0.19
Mean headline score81.3

House Committee on Energy and Commerce · House Committee on Foreign Affairs

+127 more in this faction

534 members in 12 factions, clustered within party and chamber on votes, cosponsorship, and committee signals (silhouette 0.25). Positions are a 2D PCA of those same features — the headline woke score is not used for layout.

Explore the data

087.517512–16: 316–20: 7320–24: 17324–28: 1728–32: 332–36: 236–40: 140–44: 144–48: 148–52: 252–56: 260–64: 464–68: 568–72: 1772–76: 2976–80: 1280–84: 11384–88: 6888–92: 100255075100
All scored members. 0 = traditionalist, 50 = neutral, 100 = progressive.

Split by party

Democrats (260)Republicans (273)Independents (3)
DRI0255075100
Kernel density of member scores by party. Vertical axis is relative density.

The combined distribution is two-humped (Sarle’s coefficient 0.92, above the 0.555 threshold). Splitting by party shows why: the overall spread is mostly the gap between the parties, not a continuum of individual positions.

Generated 2026-08-18 from unitedstates/congress-legislators, clerk.house.gov Electronic Voting System, senate.gov Legislative Information System, govinfo.gov BILLSTATUS bulk data, unitedstates/congress-legislators committee-membership-current.