535.fyi Calibrated odds on what Congress actually does. backtest-calibrated · live scoring as votes land · track record

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S.J.Res. 84 — A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Centers for Medicare & Medicaid Services relating to "Patient Protection and Afford…

1%becomes law moderate confidencepending: Senate on_calendar

Congressional disapproval under chapter 8 of title 5, United States C… — privileged, so 51 senators settle it: 86% on the floor, 1% to stick downstream.

13%
reaches a floor vote
×
79%
passes if voted (stage model)
×
13%
survives downstream
=
1%
becomes law
The gap: on the floor this would pass — 86% by the member-vote simulation — but the floor is the hard part: 13% to ever get the vote. That gap, not the whip count, is the story.

If it reaches the floor

majority

Projected 67 yea of 100 voting; 90% interval 37–95 (quartiles 54–83). Intervals are backtest-verified to cover ~90%.

Privileged measure (CRA / reconciliation / similar): not filibusterable — a simple majority is the real line.

Receipts

Sponsor: Mark R. Warner (D). Latest action (2026-01-13): Motion to proceed to consideration of measure rejected in Senate by Yea-Nay Vote. 47 - 52. Record Vote Number: 8.
Full record: Congress.gov.

Forecast run predict-20260606T193507Z · models member-vote-1.0.0-t117d118-20260606 + passage-1.0.0-t117d118-20260606 · conditional whip forecasts for the Senate run at moderate confidence (why).