S. 4632 — Prevent Government Shutdowns Act of 2026

3%becomes law moderate confidencepending: Senate on_calendar

Prevent Government Shutdowns Act — on the calendar; 7% to reach the floor, 3% to become law.

reaches a floor vote

98%

passes if voted (stage model)

47%

survives downstream

becomes law

The gap: on the floor this would pass — 55% by the member-vote simulation — but the floor is the hard part: 7% to ever get the vote. That gap, not the whip count, is the story.

If it reaches the floor

majority

60 (cloture)

Projected 68 yea of 100 voting; 90% interval 48–95 (quartiles 54–86). Intervals are backtest-verified to cover ~90%.

Filibusterable: the realistic Senate line is 60 votes — P(≥60) = 55% (simple-majority P = 95%).

By floor procedure

No vote is scheduled, so the headline marginalizes over how the Senate would take it up; the branches:

Procedure	Likelihood	Projected yea	Passes
conference	5%	71 [52–96]	98%
passage	95%	68 [48–95]	95%

Receipts

Sponsor: James Lankford (R). Latest action (2026-06-01): Read the second time. Placed on Senate Legislative Calendar under General Orders. Calendar No. 424.
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).