Trump Holds 'Final Determination' Meeting on Iran Nuclear Deal but Announces No Agreement

President Donald Trump walked out of a two-hour Situation Room meeting on May 29 without announcing whether he would approve a tentative deal to extend the ceasefire with Iran and launch nuclear negotiations. The meeting, which Trump had previewed as a "final determination," instead ended in silence — leaving a fragile ceasefire, a mined strait, and the question of Iran's nuclear future unresolved [1][2].

U.S. and Iranian negotiating teams had already reached the terms of a 60-day memorandum of understanding, according to Axios and PBS, pending only the president's signature [3][4]. The MOU would extend the ceasefire that halted Operation Epic Fury, reopen the Strait of Hormuz to unrestricted shipping, and set the first substantive nuclear talks since the war began in February [5].

Trump's public conditions remained blunt: "Iran must agree that they will never have a Nuclear Weapon or Bomb, and the Hormuz Strait must be immediately open, no tolls, for unrestricted shipping traffic" [1].

From Diplomacy to War and Back

The current impasse sits at the end of a long arc of failed negotiations. The first round of high-level talks began in Oman on April 12, 2025, led by U.S. Special Envoy Steve Witkoff and Iranian Foreign Minister Abbas Araghchi. Five rounds followed through May 2025 — alternating between Oman and Rome — with Oman describing "some but not conclusive progress" after the fifth session [6][7].

The talks collapsed in June 2025. Within days, Israel launched the Twelve-Day War against Iranian military and nuclear facilities. The conflict escalated further when, on February 28, 2026, the United States and Israel began Operation Epic Fury — a sustained air campaign targeting Iran's nuclear infrastructure, ballistic missile program, and military installations [8][9].

A second diplomatic track opened in February 2026. Three rounds of indirect talks, again mediated by Oman, took place in Geneva. Iranian negotiators described the third round, concluded February 26, as "the most intense so far," with "significant progress" on guiding principles [6]. Two days later, the bombs started falling.

The pattern — diplomatic progress followed by military escalation — has defined the entire 14-month cycle. The frequency of talks (eight rounds since April 2025) suggests both sides see value in negotiation, but the repeated collapses indicate that neither has been willing to make the concessions required for an agreement.

What the Draft Deal Contains

The 60-day MOU, as reported by CBS News, PBS, and Al Jazeera, includes several provisions [4][5][10]:

• Strait of Hormuz: Iran must remove all mines within 30 days. The U.S. naval blockade lifts proportionally as commercial shipping resumes. No tolls or harassment of vessels.
• Nuclear commitments: Iran commits not to pursue a nuclear weapon and agrees to negotiate the disposition of its highly enriched uranium stockpile and future enrichment activities.
• Sanctions: The U.S. would issue waivers allowing Iran to resume oil sales, with broader sanctions relief discussed during the 60-day window.
• Regional issues: The framework references "regional peace," with the Trump administration seeking discussions on Iran's support for proxy groups.

What the MOU does not contain is a resolution to the central dispute: how long Iran must halt enrichment. The U.S. reportedly wants a 20-year moratorium; Iran has offered five [11]. That gap — measured in decades — is the core obstacle.

The Technical Gap: 2015 JCPOA vs. Today's Reality

The 2015 Joint Comprehensive Plan of Action capped Iran's enrichment at 3.67% uranium-235 purity, reduced its stockpile from 10,000 kg to 300 kg, and limited centrifuge operations to 5,060 IR-1 machines at Natanz for 15 years [12][13].

Today's starting point is radically different. Iran holds an estimated 440.9 kg of uranium enriched to 60% — enough, if further enriched to weapons-grade 90%, for approximately 10 nuclear warheads [14]. In October 2025, Iran officially declared the JCPOA void, stating all restrictions on its nuclear program were lifted [11].

The war has complicated the picture in contradictory ways. U.S. strikes destroyed an estimated 75% of the Natanz enrichment plant and more than 6,000 centrifuges. But the Fordow facility — buried deep inside a mountain — sustained only about 30% damage, with its core infrastructure believed intact [14]. Iran terminated all IAEA access on February 28, 2026, meaning the international community cannot independently verify what remains operational [14].

Independent estimates of Iran's breakout time — the period needed to produce enough weapons-grade uranium for a single device — range from 2 to 4 weeks for enrichment alone, though weaponization would take longer [14]. The Arms Control Association has noted that U.S. negotiators arrived at the February talks "ill-prepared for serious nuclear negotiations," lacking the technical depth to address these realities [15].

The Economic Vise: Sanctions, Oil, and the Rial

U.S. sanctions reimposed in 2018 after Trump's first-term withdrawal from the JCPOA slashed Iran's oil exports from 2.5 million barrels per day to an all-time low of roughly 400,000 bpd in 2020 [16]. Iran partially recovered through covert export channels, stabilizing at approximately 1.5 million bpd by 2024, but war and intensified enforcement have pushed exports back down to an estimated 800,000 bpd in early 2026 [16][17].

Source: EIA / Kpler

Data as of May 29, 2026CSV

The cumulative damage is severe. The IMF projects Iran's economy will contract by 6.1% in 2026, with inflation at 68.9% [17]. The rial lost 60% of its value in the months following the July 2025 Twelve-Day War, and capital flight has accelerated as oil revenues decline [17][18]. Iran's government derives roughly a quarter of GDP and an even larger share of fiscal revenue from oil exports [17].

Whether this pressure makes a deal more or less likely is debated. Proponents of the sanctions strategy argue that economic pain forces concessions. But scholars at the Clingendael Institute have noted that Iran maintained nuclear progress even at peak sanctions pressure, suggesting that economic hardship may accelerate rather than slow weapons development — particularly if Iranian leaders conclude that a nuclear deterrent is the only guarantee against future military strikes [19].

The Hormuz Chokepoint: Leverage or Bluff?

Trump's demand that Iran immediately reopen the Strait of Hormuz reflects the strait's outsized importance to global energy markets. Approximately 20 million barrels per day of oil and petroleum liquids transited the strait in 2024-2025 — about 20% of global petroleum consumption [20][21].

Source: EIA / IEA

Data as of May 29, 2026CSV

The 2026 disruption has been described as the largest shock to global energy supply since the 1970s oil crises [22]. Brent crude surged to $114 per barrel in March 2026, and the Dallas Federal Reserve estimated that a sustained closure would lower global GDP growth by 2.9 percentage points in the second quarter of 2026 [22][23]. WTI crude oil prices peaked at $114.58 in April 2026, up 58.5% year-over-year, before easing to $97.63 in late May [24].

Source: FRED / EIA

Data as of May 26, 2026CSV

The asymmetry of exposure shapes the negotiating dynamic. Japan receives 95% of its oil imports through the strait; South Korea, 84%; China, 40% [20]. The United States, at roughly 5%, is far less exposed. This gives Trump leverage over allies who need the strait open, but it also means the economic pain of continued closure falls disproportionately on U.S. partners in Asia — the same countries Washington needs for its broader strategic competition with China.

For Iran, the calculus is different. Closing the strait also blocks its own oil exports, but with exports already throttled by sanctions, the marginal cost to Tehran is lower than it would be under normal conditions. The strait is Iran's most powerful asymmetric lever — but one that damages its own economy when pulled.

Verification: The Sovereignty Dispute

The verification demands at the center of the negotiations go beyond standard nonproliferation protocols. The U.S. has insisted on "full and continuous" IAEA supervision of all Iranian nuclear facilities — a standard that goes further than the Additional Protocol that most NPT signatories accept voluntarily [25][26].

Iran's position, reinforced by legislation passed after the 2026 strikes, requires that any IAEA inspections be approved by the Supreme National Security Council — a body answering directly to Supreme Leader Ali Khamenei [25]. Iranian negotiators have framed unrestricted inspections as incompatible with sovereignty, arguing that no state would accept the level of access the U.S. demands, particularly after its nuclear facilities were bombed [15].

The Foundation for Defense of Democracies, a hawkish Washington think tank, published six requirements for a "good Iran nuclear deal" on May 29, the day of Trump's meeting. These included permanent enrichment limits, dismantlement of advanced centrifuges, and "anytime, anywhere" inspections — terms that Iran has categorically rejected [26].

Legal scholars sympathetic to Iran's position, including some at the Arms Control Association, have argued that demanding inspection access beyond the Additional Protocol sets a precedent no nuclear-capable state would accept, effectively asking Iran to surrender more sovereignty than India, Pakistan, or Israel — none of which face comparable demands despite possessing nuclear weapons outside the NPT framework [15].

Domestic Politics: Hawks, Allies, and the Abraham Accords

Trump's indecision reflects competing pressures within his own coalition. Republican hawks have been vocal in opposition. Sen. Lindsey Graham rejected any deal that would leave Iran "perceived as being a dominant force in the region." Sen. Roger Wicker, chairman of the Senate Armed Services Committee, called the proposed 60-day ceasefire a "disaster" [27][28].

AIPAC has weighed in, emphasizing "the importance of getting the deal right" — diplomatic language widely interpreted as opposition to the current terms [27]. Israeli Prime Minister Benjamin Netanyahu, who lobbied Trump for the joint military strikes in February, has not publicly endorsed the MOU [9].

Trump has attempted to neutralize some of this opposition by linking the Iran deal to an expansion of the Abraham Accords — offering the prospect of more Arab states normalizing relations with Israel as part of a broader regional package [27][29]. After this gambit, "some of the critical voices softened their tone," CNN reported, though the core objections remain [28].

The political reality is that any deal with Iran will require sustained presidential commitment against opposition from Trump's own base. Whether Trump — who thrives on decisive action and disdains drawn-out negotiations — has the appetite for a 60-day process with uncertain outcomes is an open question.

The Escalation Ladder if No Deal Emerges

If Trump rejects the MOU or the 60-day window expires without agreement, the documented escalation pathways are stark.

Iran's options: Resume enrichment to 90% weapons-grade (which some analysts believe may already be underway covertly at Fordow), rebuild centrifuge capacity, and accelerate weaponization research. Iran's 440.9 kg stockpile of 60%-enriched uranium provides the material basis for multiple weapons [14].

U.S. responses: Resume military strikes under Operation Epic Fury, tighten the naval blockade, and expand sanctions to target remaining Iranian oil trade — including Chinese purchasers. The Congressional Research Service has outlined these options in an unclassified March 2026 report [30].

Israeli unilateral action: Israel struck Iranian nuclear sites on March 27, 2026, targeting Natanz, the Arak heavy water complex, and the Ardakan yellowcake facility. Israeli officials have stated that attacks "will escalate and expand" if Iran reconstitutes its program [31][32].

Historical precedents offer mixed guidance. Libya's 2003 decision to abandon its nuclear program followed diplomatic engagement paired with the credible threat of force — but Muammar Gaddafi's subsequent overthrow in 2011 is frequently cited by Iranian officials as proof that disarmament leads to regime change, not security [8]. North Korea's 1994 Agreed Framework temporarily froze plutonium production but collapsed when both sides failed to meet commitments, ultimately leading to Pyongyang's nuclear weapons tests. Iraq in 2003 demonstrates the risk of military action based on flawed intelligence about a program that had, in fact, been dismantled.

None of these analogies maps cleanly onto Iran's situation — a country that has been simultaneously bombed and offered negotiations, that has the technical capacity for rapid breakout, and that faces an adversary whose own political calendar may matter more than strategic logic.

What Comes Next

The absence of a decision on May 29 is itself a data point. Trump could have approved the MOU or rejected it; instead, he chose neither. This suggests the political costs of both options remain too high — approval risks alienating hawks and Israel, while rejection risks resuming a war that has already sent oil past $110 a barrel and strained alliances across Asia.

The 60-day MOU sits on Trump's desk. The ceasefire holds, but the mines remain in the strait. Iran's centrifuges — those that survived — await instructions. And the clock on breakout continues to run.