Senate Blocks $1 Trillion Defense Bill in Rare Rebuke of Trump Over His Iran War

Senate Democrats on Tuesday blocked the annual defense policy bill, refusing to advance a roughly $1 trillion package they said had become a proxy fight over President Donald Trump's expanding war against Iran. The procedural vote failed 50-46, well short of the 60 needed to move forward, in a rare bipartisan setback for legislation that has passed Congress every year for more than six decades.

The National Defense Authorization Act, or NDAA, is normally one of Washington's most reliable bills, setting Pentagon policy and authorizing a pay raise for troops. But Democrats said they would not hand the administration what Senate Minority Leader Chuck Schumer called "a permission slip for that recklessness that we see occurring in Iran." The White House formally notified Congress on Monday that it had resumed hostilities against Iran, a conflict now stretching into its fifth month with no clear endgame.

"The NDAA, in my view, has become a referendum on the Iran war," said Sen. Richard Blumenthal, D-Conn. Schumer was blunter still: "Donald Trump does not get to drag the American people deeper into a war he cannot explain." The bill includes a 3.6% pay raise for service members, and Republicans warned that Democrats were holding troops' compensation hostage to a foreign-policy grievance.

At the center of the standoff is the administration's request to lift Pentagon spending toward roughly $1.5 trillion, up from about $900 billion the previous year, to sustain the air campaign against Iran and reinforce U.S. forces across the Middle East. Democrats are also pressing for language tied to the War Powers Resolution that would force an end to military action absent congressional authorization, and several senators said they would keep blocking the measure until such limits are attached.

The vote came the same day the Senate moved on a separate war-powers measure aimed at curbing the president's ability to keep striking Iran without lawmakers' approval, a rare institutional pushback against a commander in chief of his own or the opposing party. The Pentagon has carried out consecutive nights of strikes near the Strait of Hormuz, and Trump has said more attacks are coming, raising the prospect that bridges and power plants could be targeted within days unless negotiations resume.

Republican leaders vowed to bring the defense bill back to the floor in the coming days, betting that pressure to fund the military will eventually splinter the Democratic blockade. But with the war driving up gas prices at home and no diplomatic breakthrough in sight, the impasse underscored how deeply Trump's Iran campaign has fractured Washington — and how a bill that usually sails through has become the clearest measure of congressional unease with the war.