The US Senate voted 53–47 to reject the resolution to limit presidential war powers, with which Democrats sought to return the constitutional authority to declare military action to Congress.

The resolution, led by Democratic Senator Tim Kaine, aimed to compel President Trump to seek congressional approval for continuing military operations against Iran. Despite broad Democratic support, Republicans firmly stood behind executive authority.

Two senators crossed party lines: Democrat John Fetterman of Pennsylvania voted against the limitation, backing the administration, while Republican Rand Paul of Kentucky joined the Democrats in opposing the strikes.

Senate Majority Leader Mitch McConnell praised the decision, calling it necessary for destroying Iran's military capacity. Democratic leader Chuck Schumer warned that the nation is entering yet another "endless war" without a clear exit strategy.

Defence Secretary Pete Hegseth had previously stated that the campaign could last at least eight weeks – twice Trump's initial estimate. Despite growing economic uncertainty and weak public support, the Senate chose to preserve broad executive powers to conduct the operations.