'No breakthrough': Rubio says Iran 'killed' the US deal as UN talks fail to move forward

Marco Rubio said US-Iran discussions at the UN produced no new agreement as Washington ruled out returning to an earlier understanding
United States Secretary of State Marco Rubio speaks to the media after meeting with Russian Foreign Minister Sergey Lavrov, Wednesday, September 23, 2026, in New York (AP Photo/Yuki Iwamura)
United States Secretary of State Marco Rubio speaks to the media after meeting with Russian Foreign Minister Sergey Lavrov, Wednesday, September 23, 2026, in New York (AP Photo/Yuki Iwamura)

NEW YORK CITY, NEW YORK: Secretary of State Marco Rubio said on Wednesday, September 23, that US-Iran talks held on the sidelines of the United Nations General Assembly did not produce a major breakthrough.

He described the meeting as a continuation of earlier conversations and said the United States does not view the memorandum of understanding reached with Iran earlier this year as a current option.



Rubio said the US delegation was led by Steve Witkoff and Jared Kushner. 

He did not provide details of Washington’s current demands but said preventing Iran from obtaining a nuclear weapon remained the central issue in discussions with Tehran.

Marco Rubio describes talks as continuation

Rubio said the meeting was not a new negotiating process but continued discussions that had taken place previously.

He did not announce a new agreement or say that the two sides had reached an understanding on outstanding issues. 

U.S. President Donald Trump's envoy Steve Witkoff, right, speaks accompanied by Jared Kushner during a meeting with President Vladimir Putin at the Senate Palace of the Kremlin in Moscow, on Saturday, Sept. 5, 2026. (Gavriil Grigorov/Sputnik/Kremlin Pool Photo via AP)
Steve Witkoff and Jared Kushner led the US side of the discussions with Iranian representatives in New York (Gavriil Grigorov/Sputnik/Kremlin Pool Photo via AP)

The talks took place as US and Iranian officials remained divided over the conditions for further negotiations.

He also said the United States would continue military escorts through the Strait of Hormuz because of threats to energy shipments through the waterway.

Earlier MOU no longer on the table

Referring to the arrangement and the events that followed, Rubio said, “They killed the MOU, they strangled it.”

WASHINGTON, DC - AUGUST 07: U.S. Secretary of State Marco Rubio (R) listens as U.S. President Donald Trump speaks during a roundtable on the American mining industry at the U.S. Department of State on August 07, 2026 in Washington, DC. Trump attended the event as his administration aims to secure additional supplies of critical minerals in an effort to replenish weapons stockpiles that have been depleted during the U.S. conflict with Iran.  (Photo by Eric Lee/Getty Images)
Rubio said Washington no longer considers the earlier understanding a basis for the current negotiations (Eric Lee/Getty Images)

Rubio linked the collapse of the understanding to Iranian strikes that preceded a temporary ceasefire in June.

The statement leaves the United States continuing discussions with Iranian representatives without announcing a new framework to replace the earlier MOU.

Washington repeats nuclear demand

Rubio said the United States continues to focus on preventing Iran from developing a nuclear weapon.



“The core issue here is that Iran can never have a nuclear weapon,” Rubio said.

He added that the United States raises the issue during every interaction with Iranian officials.

ARABIAN SEA - APRIL 20: (EDITOR'S NOTE: This Handout image was provided by a third-party organization and may not adhere to Getty Images' editorial policy.) In this handout photo provided by U.S. Central Command, U.S. forces patrol the Arabian Sea near M/V Touska on April 20, 2026, after firing upon the Iranian-flagged vessel that the U.S. accused of attempting to violate the U.S. naval blockade of Iranian ports near the Strait of Hormuz. (Handout Photo by the U.S. Navy via Getty Images)
In this handout photo provided by US Central Command, US forces patrol the Arabian Sea near M/V Touska on April 20, 2026, after firing upon the Iranian-flagged vessel that the US accused of attempting to violate the US naval blockade of Iranian ports near the Strait of Hormuz (The US Navy via Getty Images)

Marco Rubio questions Iran's negotiating authority

Rubio also raised questions about whether Iranian representatives involved in negotiations can make final commitments on behalf of the country.

“The ultimate decision-making in Iran lies in the hands of people that are strong believers in Iran, the revolution,” Rubio said.

He said this makes negotiations difficult because representatives can discuss possible agreements but must take them back to Iran’s revolutionary leadership.

NEW YORK, NEW YORK - SEPTEMBER 23:  Iranian President Masoud Pezeshkian speaks during the 81st session of the United Nations (U.N.) General Assembly at U.N. Headquarters on September 23, 2026 in New York City. World leaders have gathered in New York for the annual session of the United Nations General Assembly, with this year's global issues ranging from the threat of artificial intelligence to the continued wars in Ukraine and Gaza. (Photo by Spencer Platt/Getty Images)
Rubio said final decisions on major agreements rest with Iran’s revolutionary leadership rather than solely with negotiators at the table (Spencer Platt/Getty Images)

“You can deal with the people that represent Iran, the state, and you can reach agreement on some points,” Rubio said.

He added that proposed agreements ultimately have to be taken back to the leadership, where previous efforts have failed.

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