Sen. Tammy Duckworth (D-IL) questioned Secretary of State Marco Rubio on Tuesday about the U.S. diplomatic strategy and costs of the Iran-Israel war.
The hearing marks the first time Rubio has appeared before Congress since the conflict began in late February 2026 [1]. The exchange highlights growing legislative scrutiny over the Trump administration's financial commitments and the viability of a diplomatic resolution to the hostilities.
During the Senate Foreign Relations Committee hearing on Capitol Hill, Duckworth presented figures regarding the scale of military spending. She said that the cost of the war over a 14-week period exceeded the State Department's entire budget request for fiscal year 2027 [3].
"That's an astonishing figure," Duckworth said [2].
The senator used the testimony to hold the administration accountable for its handling of the war and to assess whether the U.S. could return to nuclear negotiations. The conflict, which began at the end of February 2026 [1], has strained regional stability and prompted calls for a clearer exit strategy.
Rubio addressed the possibility of a diplomatic pivot during the proceedings. He said he had a positive outlook regarding the potential for the U.S. and Iran to engage in dialogue once more.
"I am optimistic about the potential for a resumption in nuclear talks with Iran," Rubio said [3].
The hearing served as a formal mechanism for the committee to evaluate the alignment between the administration's stated diplomatic goals, and its actual expenditures on the battlefield.
“"That's an astonishing figure."”
The confrontation between Senator Duckworth and Secretary Rubio underscores a tension between the administration's military spending and its diplomatic budget. By highlighting that short-term war costs have eclipsed the annual operating budget of the State Department, the committee is signaling that the financial burden of the Iran-Israel conflict may eventually limit the administration's ability to pursue other foreign policy objectives.
