The Trump administration formally transmitted a $67.4 billion emergency supplemental funding request to Capitol Hill on Tuesday to underwrite the ongoing war against Iran, the first dedicated wartime appropriation sought from Congress since strikes began in early March and a measure all but certain to inflame an already volatile legislative landscape.

The package, sent to House Appropriations Chair Tom Cole and Senate Appropriations Chair Susan Collins shortly before 10 a.m., requests $42.1 billion in Defense Department operations and maintenance funding, $11.8 billion to replenish depleted munitions stocks, $6.3 billion for combat-related personnel costs including hazardous duty pay and casualty care, $4.2 billion for the State Department and U.S. Agency for International Development to support partner governments and refugee operations, and $3 billion for what the request describes as “energy market stabilization and strategic reserve operations.” Administration officials said the funds were intended to cover war-related expenditures through September 30, the end of the current fiscal year.

Office of Management and Budget Director Russell Vought transmitted the request under a cover letter that described the conflict as “an active and evolving contingency” and cited the need to “ensure that American forces in the U.S. Central Command theater have what they require, when they require it, without resort to extraordinary reprogramming authorities.” Vought framed the package as a narrowly tailored “wartime essentials” measure designed to avoid the omnibus-style add-ons that have historically complicated similar requests.

That framing collided almost immediately with the realities of a Congress that has been unable to fund the Department of Homeland Security for forty-five days, has yet to vote on a war powers resolution introduced Monday by House Democrats, and is racing toward an Easter recess that begins in eight legislative days.

“We are being asked to write a $67 billion check for a war Congress has not authorized, while we still cannot agree on how to pay the TSA officers screening passengers in our airports,” Representative Pramila Jayapal, D-Wash., said in a statement issued within an hour of the request’s transmission. “The answer cannot be yes on the first question and no on the second.”

Republican leadership offered a tightly disciplined initial response. Speaker Mike Johnson, in a brief statement, said the House would “move expeditiously to ensure American warfighters have the resources they need.” Senate Majority Leader John Thune said the package would be referred to the Appropriations Committee Tuesday afternoon and that he expected floor action “before the recess if at all possible.”

But behind the public statements, the legislative arithmetic appeared considerably more complicated. Three senior Republican aides, granted anonymity to describe internal deliberations, said leadership was preparing for the possibility of as many as 20 House Republican defections from members of the Freedom Caucus who have objected to additional Pentagon spending without offsets, and from a smaller bloc of war-skeptical Republicans aligned with Representative Thomas Massie of Kentucky. To clear the chamber, the package would need to draw between 25 and 40 Democratic votes — votes that progressive members are already signaling will be contingent on a separate vote on the war powers resolution.

Senate dynamics were no simpler. Senator Rand Paul, R-Ky., told reporters outside the Capitol that he intended to force a roll-call vote on every component of the supplemental and would offer an amendment requiring the administration to provide a detailed strategic objective and an estimated end date as a condition of receiving the funds. “If we are spending $67 billion, the American people are entitled to know what victory looks like and when it arrives,” Paul said.

Several centrist Democrats indicated they would withhold judgment pending a classified briefing scheduled for Wednesday afternoon. Senator Mark Kelly, D-Ariz., a retired Navy combat aviator who has been generally supportive of the operational effort while critical of its escalation, said in a statement that he would “review the request carefully” and would “not vote to fund this war without confidence that the administration has a coherent path to its conclusion.”

The munitions replenishment line item drew particular attention from defense analysts, who said the $11.8 billion figure was unusually large for a single supplemental and reflected the intensity of expenditure in the first four weeks of the conflict. Cynthia Vance, a senior fellow at the Center for Strategic and Budgetary Assessments, said early Patriot interceptor and Standard Missile-6 expenditure rates had been “running well above sustainable peacetime production” and that without rapid congressional action, the Defense Department would face hard choices about prioritizing inventories between Central Command and the Indo-Pacific.

“The arsenal-of-democracy framing always sounds reassuring until you look at the production schedules,” Vance said. “You cannot ship interceptors to two theaters at once if the lines have only been funded to supply one.”

The $3 billion energy market stabilization line was the most novel element of the package and immediately drew scrutiny on Capitol Hill. Administration officials, briefing reporters on background Tuesday morning, said the funds were intended for Strategic Petroleum Reserve operations and potential support for partner-country energy infrastructure repairs, including damage assessments in Saudi Arabia and the United Arab Emirates following recent Iranian missile strikes. Two senior congressional staffers from opposing parties said the provision would likely face the most aggressive line-item editing of any element in the request.

The request was accompanied by a classified annex transmitted to the leadership of the four congressional defense committees and the intelligence committees. A House Armed Services Committee aide said the annex contained detailed casualty projections, ammunition consumption forecasts, and an “operational scenario range” that aides expected to be the most contested element of closed-session deliberations.

White House Press Secretary Karoline Leavitt, asked at the afternoon briefing whether the administration would accept conditions on the funds, declined to commit. “The President has been clear that he will not negotiate away the operational flexibility our commanders need,” Leavitt said. “We expect Congress to act, and to act quickly.”

A senior House Democratic leadership aide, speaking on condition of anonymity, said party leaders would meet Tuesday evening to determine whether to formally link consideration of the supplemental to a floor vote on the war powers resolution. “There is real appetite to make those two questions inseparable,” the aide said. “We will see if the votes hold.”

Appropriations staff in both chambers said markups would begin no later than Thursday. Leadership in both parties said additional procedural steps would be announced in the coming days.