Restricting First Use of Nuclear Weapons Act of 2025

This bill requires Congress to formally declare war before the U.S. can conduct a first-use nuclear strike. It prohibits federal funding for any such attack unless Congress has declared war expressly authorizing it. The bill defines "first-use" as an attack launched without prior confirmation that the U.S., its territories, or allies have already been hit by a nuclear strike. This would directly affect the President’s authority to order nuclear weapons and require congressional approval for the most significant military decision.