US Formally Responds to Iran's Latest Ceasefire Proposal

On May 3, 2026, Iranian Deputy Foreign Minister Kazem Gharibabadi confirmed that Tehran had received Washington's reply to its 14-point peace proposal, transmitted through Pakistan. "Now the ball is in the United States' court to choose the path of diplomacy or the continuation of a confrontational approach," Gharibabadi said [1]. Hours earlier, President Donald Trump had already telegraphed his answer: "They have not yet paid a big enough price for what they have done to Humanity" [2].

The exchange marks the latest round in a diplomatic back-and-forth that has continued since the April 7 ceasefire paused — but did not end — a war that began with joint US-Israeli strikes on February 28, 2026 [3]. What Iran is proposing, what the US is demanding, and why the gap between them remains so wide are questions with consequences that extend far beyond the Middle East.

What Iran Is Asking For

Iran's 14-point proposal, submitted via Pakistan on May 2 and reported by Tasnim News Agency and Press TV, centers on one demand above all: end the war within 30 days, not the two-month ceasefire window the US had proposed [4]. The plan is structured in three phases.

In the first phase, the US, Iran, and Israel would sign a nonaggression pact, halt all hostilities — including in Lebanon — and lift the US naval blockade of the Strait of Hormuz, through which roughly a fifth of global oil and gas exports pass [5]. Iran also demands the withdrawal of US forces from its periphery and the release of frozen Iranian assets as a confidence-building measure [4].

The second phase addresses nuclear issues. Iran would agree to a 15-year freeze on uranium enrichment, after which it would resume enriching to 3.67% — the level permitted under the original 2015 JCPOA. Critically, Tehran rejected US demands to dismantle nuclear infrastructure or facilities. In exchange, Iran wants all sanctions lifted and frozen funds released [5].

The third phase envisions a "strategic dialogue" between Iran and neighboring Arab states to build what Tehran describes as "a security system that includes the entire Middle East," with China and Russia playing enforcement roles [5].

What the US Rejected — and Why

Trump told reporters he had reviewed the proposal and found it "not acceptable," though he noted his representatives were "having very positive discussions" that could lead to something constructive [2]. The administration has not publicly released a point-by-point rebuttal, but the areas of disagreement are clear from prior US demands.

Washington's own 15-point framework, delivered in April, called for the complete reopening of the Strait of Hormuz, an end to Iran's nuclear program — not merely a freeze — restrictions on Iran's missile capabilities, and limits on Tehran's support for armed groups across the region [6]. The nuclear issue is the sharpest divide. A senior Iranian official confirmed that Tehran envisions ending the war and resolving the shipping standoff first, leaving nuclear talks for a later phase — a sequencing that contradicts Washington's insistence that nuclear restrictions come before any war can end [6].

The Nuclear Gap: 440 Kilograms and Counting

The scale of Iran's nuclear advancement since the collapse of the JCPOA in 2018 is central to understanding why the US considers a simple enrichment freeze insufficient.

As of September 2025, Iran had accumulated 440.9 kg of uranium enriched to 60% U-235, making it the only non-nuclear-weapon state party to the Non-Proliferation Treaty to have produced such material [7]. According to the IAEA, this stockpile — if further enriched to weapons-grade 90% — could yield fuel for nine nuclear weapons [7]. The Center for Arms Control and Non-Proliferation estimates that 99% of the separative work needed to reach weapons grade has already been performed, and a single cascade of 175 IR-6 centrifuges could produce enough material for one weapon every 25 days [8].

Source: IAEA / Arms Control Association

Data as of Feb 27, 2026CSV

The IAEA has not had access to verify Iran's highly enriched uranium stockpile for over eight months, a gap the agency called "a matter of proliferation concern" [7]. Much of the material is believed to be buried at Iran's Isfahan nuclear complex, which was bombed during both the 2025 Israeli strikes and the 2026 US-Israeli campaign [9]. In June 2025, Iran declared a new underground enrichment facility at Isfahan; as of March 2026, the IAEA has not inspected the site and does not know whether centrifuges have been installed [7].

For the US and Israel, the red line has been preventing Iran from achieving nuclear breakout capability — the ability to produce a weapon on short notice. Iran's current position, with a breakout timeline measured in weeks rather than months, makes any deal that leaves enrichment infrastructure intact a hard sell in Washington and an impossible one in Jerusalem.

Frozen Assets: $100 Billion and the Question of Who Benefits

Iran's demand for the release of frozen assets is not symbolic. Expert estimates place the total value of Iranian funds frozen abroad at over $100 billion — roughly a quarter of Iran's GDP and three times its annual hydrocarbon revenue [10]. The funds are scattered across multiple countries.

Source: Al Jazeera / expert estimates

Data as of Apr 15, 2026CSV

China holds the largest share at approximately $20 billion, followed by India ($7 billion), Iraq and Qatar ($6 billion each), the United States ($2 billion), EU countries including Luxembourg ($1.6 billion), and Japan ($1.5 billion) [10]. These funds consist primarily of oil sales revenues frozen in foreign banks due to US-led and EU sanctions.

Tehran's opening demand in ceasefire talks was the release of at least $6 billion as a confidence-building measure [10]. However, a former US Treasury Secretary noted that even if all sanctions were lifted, Iran could access only about half its frozen assets, as the remainder is "already committed to previously promised investments or for loan repayments" [10].

The political question of who benefits from unfreezing has divided analysts. Critics of sanctions relief argue that the primary beneficiary would be the Islamic Revolutionary Guard Corps (IRGC), which controls significant portions of Iran's economy and has expanded its wartime authority. Supporters counter that sanctions have devastated ordinary Iranians while failing to change regime behavior, and that asset release tied to verifiable compliance could build the foundation for broader engagement.

The Inspection Question: What Happened to 'Anytime, Anywhere'?

Any comparison between the current negotiations and the 2015 JCPOA runs into the verification problem. Under the original deal, Iran accepted what the Center for International Policy called "the most comprehensive and intrusive IAEA weapons inspection system ever negotiated" [11]. The IAEA could request access with 24-hour notice to any site suspected of illicit nuclear activity, and a Joint Commission could force Iran to comply when a majority voted for access [11].

That regime collapsed after the US withdrew from the JCPOA in 2018. Iran progressively restricted IAEA access, and by 2026 the agency's monitoring capability had degraded sharply. In September 2025, the IAEA and Iran reached an agreement in principle for inspectors to return, but there is no agreement on when inspectors will actually arrive or when Iran will resume providing data on its nuclear facilities [12].

Iran's 14-point proposal makes no mention of restoring IAEA access or accepting new verification mechanisms. The demand that originally defined the US negotiating position — "anytime, anywhere" inspections — has not resurfaced in current talks. For arms control experts, rebuilding a credible verification regime from the current baseline would take years, not the 30 days Iran's proposal envisions.

Allies Onside — and Offside

The war itself was partly a product of allied pressure. The Washington Post reported that weeks of lobbying by Israel and Saudi Arabia helped move Trump to launch the February 28 strikes [13]. Both countries framed Iran's nuclear program as an existential regional threat.

Since then, their positions have diverged. Israeli Prime Minister Benjamin Netanyahu described the strikes as removing an "existential threat" and signaled that Israel is open to negotiations — but without a ceasefire, meaning talks should proceed while military pressure continues [13]. Saudi Arabia, which condemned Iranian retaliatory strikes on Gulf Arab states, has called for talks to "address all issues" contributing to Middle East instability, a broader framing that suggests Riyadh wants regional security guarantees beyond the nuclear file [13].

Neither Israel nor Saudi Arabia has publicly endorsed Iran's 14-point proposal. Israeli officials have privately expressed alarm at the enrichment freeze concept, arguing that leaving Iran's centrifuge infrastructure intact preserves breakout capability regardless of enrichment levels. Gulf states, meanwhile, are concerned about the proposal's third phase — a regional security dialogue that would give Iran a formal seat at the table alongside its neighbors, backed by Chinese and Russian guarantees rather than American ones.

Hawks, Doves, and the JCPOA's Shadow

The strongest case against engaging Iran diplomatically at this moment comes from congressional hawks and Israeli officials who argue that negotiations reward aggression and weaken deterrence.

Senator Lindsey Graham articulated this position: "Allowing this regime to enrich in the future would be an affront to all those murdered by the regime since this war started and would be inconsistent with denying Iran a pathway toward a bomb in the future" [14]. On May 14, 52 senators and 177 House members signed a letter urging Trump to reject any deal that permits continued enrichment [14].

Hawks frequently cite the JCPOA's sunset clauses — provisions that allowed restrictions on Iran's enrichment to expire after 10 to 15 years — as proof that time-limited agreements merely delay rather than prevent nuclear proliferation. They argue that Iran used the post-JCPOA period to accelerate enrichment far beyond pre-deal levels, and that a 15-year freeze, as Tehran now proposes, would repeat the same mistake.

Proponents of engagement counter that the JCPOA was working as designed before the US withdrew: Iran was in compliance, its enrichment was capped at 3.67%, and the IAEA had unprecedented access. The current crisis, they argue, is a direct consequence of abandoning that framework, not evidence that diplomacy fails. The Arms Control Association has argued that Iran's offer to dilute its 60%-enriched stockpile under IAEA supervision "would be extremely valuable and well worth bargaining for," given the material's strategic significance [8].

Domestic Pressures: Two Capitals, Two Power Struggles

In Tehran, the war has triggered an unprecedented rift within the hardline establishment. Ultra-hardliners aligned with former chief nuclear negotiator Saeed Jalili have refused to sign letters backing Iran's negotiating team, while the faction led by Parliament Speaker Mohammad Bagher Ghalibaf — who led talks in Islamabad — has pushed for engagement [15]. The split has spilled into state-linked media, with clashes between the Raja News outlet and the IRGC-linked Tasnim News Agency [15].

More significantly, the IRGC has consolidated wartime power. IRGC commander Ahmad Vahidi has emerged as Tehran's "current decision maker," according to the Institute for the Study of War, concentrating authority within a narrow inner circle rooted in the Supreme National Security Council and the supreme leader's office [16]. This power shift means that any deal must satisfy not just Iran's elected officials but the military establishment that now dominates both strategy and politics.

In Washington, the War Powers Resolution has become a parallel battleground. The 60-day clock for congressional authorization of hostilities hit on May 1 [17]. Trump responded by sending Congress a letter declaring that hostilities "have terminated" since the April 7 ceasefire, arguing the deadline does not apply [17]. Congressional Democrats have tried six times to invoke the War Powers Resolution to halt the conflict; each attempt was rejected by the Republican-controlled Senate [17].

The question of whether any deal would require Senate ratification as a treaty — needing a two-thirds supermajority — or could be structured as an executive agreement remains unresolved. The JCPOA was an executive agreement, which allowed Trump to withdraw unilaterally in 2018. Critics across the political spectrum have argued that any new Iran deal should go through Congress to ensure durability; the administration has not committed either way.

What Comes Next

If a deal were somehow reached on the terms currently under discussion, the timeline for Iranian compliance would be measured in months, not days. Diluting or surrendering the 60%-enriched stockpile, restoring IAEA access, and verifying the shutdown of undeclared facilities would each require separate negotiations and technical processes.

The triggering conditions for the deal's collapse are equally uncertain. The US would presumably reimpose sanctions if Iran violated enrichment caps, but defining violation thresholds — and determining who adjudicates them in the absence of the JCPOA's Joint Commission — remains an open question. Iranian proxy activity in Lebanon, where Hezbollah and Israel continue to exchange fire despite the declared ceasefire [18], represents another potential tripwire.

For now, the two sides are talking past each other through intermediaries. Iran wants the war to end in 30 days and nuclear talks deferred. The US wants nuclear concessions before any war can end. Pakistan carries messages between capitals that disagree on the order of operations, let alone the substance.

The gap is not unbridgeable, but bridging it requires compromises that neither side's domestic politics currently permit — and that key allies would actively resist.