U.S. appears cool on Iran proposal to end war and reopen Hormuz without a nuclear deal

The United States showed little immediate enthusiasm for a new Iranian proposal that would end the war and reopen the Strait of Hormuz without resolving the impasse over the Islamic Republic's nuclear program.

Iran's latest offer looked “better” than past pitches, Secretary of State Marco Rubio said late Monday, after it was discussed by President Donald Trump and his national security team. But there was little sign that Washington might be willing to abandon its naval blockade and accept the offer.

Energy prices soared again on the negative signals, with the international benchmark price for oil, Brent crude, reaching a three-week high above $111 a barrel early Tuesday.

The Iranian proposal would focus on reopening Hormuz — the vital trade route whose closure has shaken the global economy — and ending the war the U.S. and Israel began two months ago, but table thorny nuclear talks until a later date, a Gulf source and a regional source told NBC News.

The details of the proposal were first reported by Axios.

“Suffice it to say that the nuclear question is the reason why we’re in this in the first place,” Rubio said in an interview with Fox News.

"They’re very good negotiators," he said of Iran, but he said any agreement would have to be one that "definitively prevents them from sprinting toward a nuclear weapon at any point."

Iran maintains that it has no desire to develop a nuclear weapon, but American demands that Tehran halt its enrichment program have been a key roadblock in peace talks.

The Iranian proposal was discussed Monday in a meeting between Trump and his national security team, according to White House Press Secretary Karoline Leavitt, although it was not immediately clear how seriously it was being weighed. ​

“The president’s red lines with respect to Iran have been made very, very clear, not just to the American public, but also to them as well,” Leavitt told reporters. “I wouldn’t say they’re considering it,” she said, adding that Trump would address the subject publicly soon.

Members of the Gulf Cooperation Council will hold a meeting Tuesday where the Iranian proposal will also be discussed, according to two Gulf officials. Kuwait’s state news agency confirmed the group was expected to convene for an exceptional summit in Jeddah on Tuesday.

While constraining Iran’s nuclear program is critical to the Trump administration, restarting the flow of oil remains a top priority for Gulf allies. The U.S. has been signaling that its blockade is inflicting economic pain on Tehran, too, however.

"The pressure on Iran is extraordinary," Rubio told Fox.

Iran is quickly running out of oil storage, according to a new report from Kpler, an intelligence platform. It has enough remaining storage for about 12 to 22 days worth of production, Kpler said.

While there have been many figures floating around about the U.S. blockade’s impact on the Iranian economy, Kpler put the figure at $200 million to $250 million per day.

But crucially the report outlines that it typically takes about two months for Iranian oil to reach China, with the buyer having two months to make a payment, meaning the true impact on Iran's economy may not be felt for some time yet.

In the meantime shipping through the crucial waterway is largely at a standstill despite the ceasefire.

With peace talks stalled and the two countries locked in their maritime standoff, neither side has shown great urgency to make concessions for a peace agreement.

Trump publicly urged Tehran to phone when it wants a deal, after scrapping a planned weekend trip to Pakistan by his envoys that left face-to-face diplomacy at an impasse.

Iranian Foreign Minister Abbas Araghchi traveled to Islamabad, the Pakistani capital that has emerged as a hub of diplomacy, to present Tehran's latest proposal to mediating Pakistani officials, but refused to meet directly with U.S. officials to discuss it.

He then flew to Russia on Monday to meet with President Vladimir Putin, who has been a key backer of Iran.

If no deal can be reached, Rubio said the next steps would be Trump’s “decision to make.”

Iran was mainly "serious about figuring out how can they buy themselves more time," Rubio said Monday.

"We can’t let them get away with it," he said.