Iranian officials stated on Monday that while significant progress has been made in high stakes negotiations with the United States, a final agreement is not yet imminent. The caution from Tehran contrasts with more optimistic timelines suggested by U.S. officials over the weekend.

"It is correct to say that we have reached a conclusion on a large portion of the issues under discussion," Iranian Foreign Ministry spokesman Esmail Baqai said during a press briefing in Tehran. "But to say that this means the signing of an agreement is imminent no one can make such a claim."

The statement followed remarks from U.S. Secretary of State Marco Rubio, who indicated from New Delhi that an accord could materialize as early as Monday. "We thought we might have some news last night. Maybe today," Rubio told reporters, though he cautioned against overinterpretation, noting that communication delays with Iranian leadership routinely extend the pace of talks.

According to intelligence reports cited by U.S. media, communication logistics have been complicated by the displacement of Iran’s Supreme Leader, Mojtaba Khamenei. Khamenei, who assumed leadership after his father was killed in an Israeli airstrike on the opening day of the conflict, is reportedly operating from an undisclosed location due to injuries sustained in that same strike.

Framework of the Proposed Memorandum

The proposed memorandum of understanding is structured as an interim framework rather than a final settlement. According to reports, the core components of the tentative deal include:

• A 60-day ceasefire extension between the conflicting parties.

• The reopening of the Strait of Hormuz, a vital maritime chokepoint for 20% of global oil and liquefied natural gas, which Iran has blocked since the escalation.

• A structured pathway for subsequent negotiations regarding Iran’s nuclear program.

Thorny long-term issues including the specific timeline for U.S. sanctions relief, the release of frozen Iranian assets, and permanent limits on Tehran's nuclear ambitions are expected to be deferred to later rounds of talks.

President Donald Trump confirmed over the weekend that the sides were closing in on a framework, though he later noted on social media that he had instructed U.S. negotiators "not to rush into" an agreement, emphasizing that "the deal with Iran will either be a great and meaningful one, or there will be no deal."

Political Backlash and Market Reactions

The prospective agreement has generated sharp division within the Republican party. Several high profile lawmakers have publicly criticized the administration's approach, arguing the terms are overly lenient.

Senator Ted Cruz labeled the proposed framework a "disastrous mistake," while Senator Roger Wicker, Chairman of the Senate Armed Services Committee, warned that a 60 day ceasefire risked undermining the strategic gains of recent military operations. Senator Lindsey Graham also expressed concern, questioning any framework that leaves Iran's regional influence intact. President Trump dismissed the domestic criticism, defending the administration's pragmatic approach to resolving the crisis.

Conversely, global financial markets reacted positively to the prospect of a diplomatic breakthrough. Oil prices fell sharply on Monday, and Asian stock markets posted gains as energy supply anxieties eased.

Logistics and Nuclear Safeguards

Even if a diplomatic breakthrough is announced this week, maritime and logistics experts warn that global supply chains will not recover immediately. Lars Jensen, Chief Executive of Vespucci Maritime, noted that it could take months before the shipping industry fully restores standard routes. Jensen emphasized that carriers will likely remain "cautious and hesitant" to implement major operational shifts until regional stability is fully verified.

The current crisis erupted on February 28, following wide-ranging U.S. and Israeli strikes on Iran, which triggered a broader regional conflict and the subsequent maritime blockade of the Strait of Hormuz. In April, a temporary ceasefire allowed the U.S. to establish a strict naval blockade of Iranian ports, which the administration maintains will remain in full effect until a finalized agreement is signed and certified.

A central pillar of any lasting agreement remains Iran's nuclear capabilities. President Trump reiterated on Sunday that preventing Tehran from acquiring a nuclear weapon remains a non negotiable U.S. stance. U.S. media reports suggest the current framework may require Iran to surrender its stockpile of highly enriched uranium.

At the onset of the conflict, Iran was estimated to possess approximately 440 kilograms (970 lbs) of uranium enriched to 60% purity a technical threshold close to the 90% weapons-grade level.

Iranian President Masoud Pezeshkian reiterated Tehran's official stance on state television, asserting that the Islamic Republic remains ready "to assure the world that we are not after a nuclear weapon" and that the program is intended purely for peaceful purposes.