Defense Secretary Pete Hegseth walked into a Senate Appropriations Committee hearing this week with a number designed to justify billions in new war funding — and walked out having handed his critics a bigger one to argue about. Hegseth told lawmakers the U.S.-Iran war has cost $37.5 billion so far, up sharply from the roughly $25 billion figure the Pentagon offered in late April and the $29 billion estimate given just weeks before this hearing. He and Joint Chiefs Chairman Gen. Dan Caine were there to ask for $67 billion more.
The trouble, according to reporting from multiple outlets that covered the hearing, is that even Hegseth's own number is likely an undercount. NBC News reported that the Defense Department's internal estimate for the war's overall cost, including expenses like repairing damaged U.S. facilities that aren't captured in the public figure, runs between $80 billion and $100 billion. Sen. Chris Coons, a Delaware Democrat, told reporters that if you count just the cost of replacing munitions already fired, the total is "already well beyond $10 billion" for the first six days of fighting alone, according to a separate closed-door briefing reported by NBC.
A hearing that turned combative fast
What made the exchange notable wasn't just the dollar figure — it was how openly senators from both parties pushed back on it. Republican Sen. John Kennedy said Congress and the public need "some straighter answers" from the Pentagon about how the money will be spent and how the war ends. Senate Democrats went further: Assistant Democratic Leader Dick Durbin said Hegseth and Caine "can't explain how this money is going to be spent," and New York's Kirsten Gillibrand pressed Hegseth directly on whether Iran's nuclear capability had actually been destroyed.
Money for the war — and a lot that isn't
The funding fight is tangled up with a broader $95 billion GOP budget package that includes money well outside the Iran conflict: roughly $11 billion for farm aid and $10 billion earmarked for voting law changes, according to hearing coverage. Democrats seized on that mix as evidence the request was as much about administration priorities as about the war itself, arguing that money was being requested for weapons systems the Pentagon had already asked for once before.
Behind the numbers sits a war that has kept escalating rather than winding down. U.S. Central Command confirmed an eleventh consecutive night of strikes on Iranian targets around the time of the hearing, and Iran has responded with strikes on commercial vessels in the Strait of Hormuz and reported aerial attacks intercepted by Kuwait, Bahrain, and Jordan. President Trump has also signaled the U.S. may soon strike a fortified underground facility linked to Iran's nuclear program, which Tehran has warned it would treat as a further expansion of the war.
What happens next
Congress is due to take up another war-powers resolution this week — the Senate's roughly twelfth attempt to force a vote limiting the conflict, following a House-passed measure aimed at the same goal. None has yet cleared both chambers. Until one does, the practical question moving through Capitol Hill isn't whether to keep funding the war, but how large a blank check lawmakers are willing to sign without a clearer account of where the money already spent has gone.