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The White House’s comment comes days after a senior Trump aide said Iran is one week away from having material for nuclear bomb.

The White House has insisted that last year’s strikes against Iran destroyed the country’s nuclear programme despite a recent claim by a senior US official that Tehran is a week away from having bombmaking material.

Karoline Leavitt, the White House spokesperson, told reporters on Tuesday that the June 2025 attack on Iran’s nuclear facilities, known as Operation Midnight Hammer, was an “overwhelmingly successful mission”.

The attack “did, in fact, obliterate Iran’s nuclear facilities“, Leavitt said.

But just this weekend, President Donald Trump’s envoy Steve Witkoff suggested that Iran is close to having enough material to build a nuclear weapon.

“They’re probably a week away from having industrial-grade bomb-making material,” Witkoff told Fox News on Saturday.

Since last June’s strikes, Trump has repeatedly hailed the attack, arguing that it eliminated Iran’s nuclear programme and led to “peace” in the Middle East. Operation Midnight Hammer came towards the end of a 12-day war Israel initiated with Iran that month.

But eight months later, US and Iranian officials are once again holding talks to reach a nuclear deal and avert another war.

On Tuesday, Leavitt said the destruction of Iran’s nuclear programme had been “verified” by Trump and the United Nations’ watchdog, the International Atomic Energy Agency (IAEA).

“That does not mean that Iran may never try again to establish a nuclear programme that could directly threaten the United States and our allies abroad, and that’s what the president wants to ensure can never happen again,” she added.

Last year, after the US attack, IAEA chief Rafael Grossi said Iran could resume uranium enrichment “in a matter of months”.

But the UN agency’s inspectors have not been able to assess Iran’s nuclear sites since the US strikes.

The Pentagon’s public assessment was that the Iranian nuclear programme was set back by one to two years.

There has been no official confirmation of the US claims that Iran has restarted nuclear enrichment after the attack.

After a visit by Israeli Prime Minister Benjamin Netanyahu to the US in December, Trump renewed his threats to attack Iran if it tries to rebuild its nuclear or missile programme.

Tensions have spiralled since then, with the US amassing military assets near Iran.

Still, Tehran and Washington are set to hold the third round of negotiations this year to push for a nuclear deal.

Iran, which denies seeking a nuclear weapon, has said it would agree to minimal uranium enrichment under strict IAEA supervision in exchange for lifting sanctions against its economy.

But Trump has repeatedly stressed that it is seeking zero enrichment.

Enrichment is the process of isolating and concentrating a rare variant, or isotope, of uranium that can produce nuclear fission.

At low levels, enriched uranium can power electric plants. If enriched to approximately 90 percent, it can be used for nuclear weapons.

Before the June 2025 war, Iran was enriching uranium at 60 percent purity.

Tehran had been escalating its nuclear programme since 2018, when Trump, during his first term, nixed a multilateral agreement that capped Iran’s enrichment at 3.67 percent. He instead started piling up sanctions on the Iranian economy, as part of a “maximum pressure” campaign.

The White House on Tuesday suggested the military option against Iran remains on the table.

“President Trump’s first option is always diplomacy. But as he has shown, he is willing to use the lethal force of the United States military if necessary,” Leavitt said.

Israeli Prime Minister Benjamin Netanyahu has outlined the conditions he considers necessary for any prospective deal between the United States and Iran, including the dismantling of all of Tehran’s nuclear infrastructure.

His comments on Sunday came as Iranian Minister of Foreign Affairs Abbas Araghchi headed to Switzerland for a second round of nuclear talks with the US.

Speaking at the annual Conference of Presidents of Major American Jewish Organizations, Netanyahu said he was sceptical of a deal, but had told US President Donald Trump last week that any agreement must include several elements.

“The first is that all enriched material has to leave Iran,” he said.

“The second is that there should be no enrichment capability – not stopping the enrichment process, but dismantling the equipment and the infrastructure that allows you to enrich in the first place”.

The third, he said, was resolving the issue of ballistic missiles.

Netanyahu also called for sustained inspections of Tehran’s nuclear programme.

“There has to be real inspection, substantive inspections, no lead-time inspections, but effective inspections for all of the above,” he said.

Iran and the US resumed nuclear negotiations in Oman on February 6, months after previous talks collapsed when Israel launched an unprecedented bombing campaign against Iran last June, which started a 12-day war.

The US joined in the attacks, bombing three Iranian nuclear sites.

Netanyahu’s comments mark the first time he has spoken publicly on the discussions with Trump in Washington, DC, last Wednesday. The meeting was their seventh since Trump returned to office last year.

Trump told reporters afterwards that they had reached no “definitive” agreement on how to move forward with Iran, but that he had “insisted that negotiations with Iran continue to see whether or not a deal can be consummated”.

According to a report by Axios, the two leaders agreed to intensify economic strangleholds on Iran, mostly on its oil sales to China. More than 80 percent of Iranian oil exports current go to China.

The report, which cited US officials, said Netanyahu and Trump agreed in their meeting on the necessary end state: an Iran without the capability to obtain nuclear weapons. But they disagreed about how to get there.

Netanyahu told Trump it would be impossible to make a good deal, while Trump said he thought it was possible. “Let’s give it a shot”, Trump said, according to Axios.

Iran has long denied any intent to produce nuclear weapons, but has said it is prepared to discuss curbs on its atomic programme in exchange for the lifting of sanctions. It has ruled out linking the issue to missiles, however.

The CBS broadcaster, meanwhile, reported on Sunday that Trump had told Netanyahu during a meeting in Florida in December that he would support Israeli strikes on Iran’s ballistic missile programme if the US and Iran could not reach a deal.

The network cited two sources familiar with the matter.

There was no immediate comment from the US or Israel on the CBS report.

The renewed push for diplomacy comes after Trump threatened new attacks on Iran and sent a US aircraft carrier to the region, citing a deadly crackdown on antigovernment protesters in January.

Tensions in the region remain high, meanwhile.

On Friday, Trump said he was sending a second aircraft carrier to the Middle East, and openly discussed changing Iran’s government.

Asked if he wanted a government change in Iran, Trump responded that it “seems like that would be the best thing that could happen”.

Asked why a second aircraft carrier was headed to the Middle East, Trump said: “In case we don’t make a deal, we’ll need it … if we need it, we’ll have it ready.”

For its part, Iran has promised to retaliate to any attack, saying it will strike US bases in the Middle East.

The continued tensions have sparked fears of a wider regional war.