WASHINGTON, D.C. — Secretary of State Marco Rubio, appearing before both the Senate Foreign Relations Committee and the House Appropriations Subcommittee on National Security on Monday — his first full congressional testimony since U.S. and Israeli forces launched Operation Epic Fury on February 28, 2026 — delivered a comprehensive defense of the Trump administration’s diplomatic strategy on Iran, Lebanon, and the Strait of Hormuz.

The testimony, conducted over back-to-back hearings in relation to the FY2027 State Department budget request, amounted to the most detailed public accounting of U.S. negotiating strategy since the war began. Rubio was direct, confident, and unambiguous on the core principle driving all three diplomatic tracks: Iran does not get rewarded for coming to the table — it gets rewarded for delivering results.

Rubio opened his assessment of Iran negotiations with a statement that stopped the hearing room: Tehran has agreed to negotiate aspects of its nuclear program that, just one year ago, it flatly refused to acknowledge at the table. The shift, Rubio made clear, is not the product of goodwill — it is the product of sustained American military and economic pressure.

But Rubio was equally clear that movement at the table does not mean a deal is certain — or that America will accept anything short of its stated requirements. “There is no guarantee it will lead to a deal that’s acceptable,” he told senators. A potential agreement, he said, “could happen today, could happen tomorrow, could happen next week” — but only on American terms.

Rubio also shed rare public light on Iran’s new supreme leadership. With prior Supreme Leader Ali Khamenei killed in initial U.S.-Israeli strikes, his successor Mojtaba Khamenei has been engaging — but carefully and exclusively through written communications and intermediaries. “I think there are indications out there that he is increasingly engaging at some level,” Rubio told the committee, “although all of his communications have been in writing and through intermediaries.” The caution of the new Iranian leadership, Rubio suggested, reflects not strength but the regime’s recognition of just how dramatically the balance of power has shifted.

Rubio’s most striking declaration of the day came not on Iran but on Lebanon. Speaking with the confidence of a man who has studied every line of every failed Middle East peace effort over the past three decades, he delivered a verdict that was as simple as it was sweeping:

The statement was made as the fourth round of direct U.S.-brokered Israel–Lebanon negotiations was underway in Washington, running June 2–3, 2026 — involving Israeli Ambassador Yechiel Leiter, Lebanese Ambassador Nada Hamadeh Moawad, and senior U.S. officials including a senior adviser to Rubio himself.

Taken together, Rubio’s testimony outlined a coherent, integrated American strategy — not a patchwork of bilateral negotiations, but a unified campaign linking military pressure, economic sanctions, and direct diplomacy toward a single overarching goal: a Middle East in which Iran does not have a nuclear weapon, the Strait of Hormuz is open to free navigation, Hezbollah is disarmed, Hamas is defeated, and Israel and Lebanon can build the peace that has been possible all along but for the malevolent presence of an Iranian-backed terrorist organization.

For members of Congress on both sides of the aisle, Rubio’s testimony offered a rare moment of strategic clarity in a conflict that has generated significant political uncertainty. Democrats pressed on war powers and costs; Republicans pressed on the strength of nuclear verification mechanisms. On both fronts, Rubio held his ground — defending the administration’s approach as principled, patient, and ultimately more likely to produce lasting results than any of the alternatives that have been tried and failed before.

The next round of public testimony, and the next round of direct talks, will reveal whether Iran’s internal calculations have produced the breakthrough that Rubio — and the world — is waiting for.

This article is based on congressional testimony delivered by Secretary of State Marco Rubio on June 2, 2026, before the Senate Foreign Relations Committee and the House Appropriations Subcommittee on National Security, Department of State, and Related Programs, and on contemporaneous reporting from C-SPAN, the State Department, and wire services as of June 3, 2026.