H.R. 2504 — The U.S.-European Nuclear Energy Cooperation Act of 2025

4%becomes law high confidencepending: House reported

The U.S.-European Nuclear Energy Cooperation Act — reported and queued, quiet for 72 days; 28% to reach the floor, 4% to become law.

28%

reaches a floor vote

>99%

passes if voted (stage model)

14%

survives downstream

becomes law

The gap: on the floor this would pass — 96% by the member-vote simulation — but the floor is the hard part: 28% to ever get the vote. That gap, not the whip count, is the story.

If it reaches the floor

majority

Projected 337 yea of 430 voting; 90% interval 211–416 (quartiles 292–402). Intervals are backtest-verified to cover ~90%.

By floor procedure

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

Procedure	Likelihood	Projected yea	Passes
passage	38%	305 [181–413]	90%
suspension	62%	357 [227–417]	>99%

Receipts

Sponsor: William R. Keating (D). Latest action (2026-03-26): Ordered to be Reported in the Nature of a Substitute by the Yeas and Nays: 43 - 3.
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).