Vice President JD Vance has delayed his trip to Switzerland to lead new US talks with Iran on its nuclear program, as the fragile agreement he helped broker faces its first major crisis just days after being signed.
The postponement comes as intense Israeli strikes in southern Lebanon threaten to unravel the deal before formal negotiations can even begin. Switzerland’s foreign ministry confirmed that the first round of US-Iran negotiations, planned for the Bürgenstock mountain resort, would not take place as scheduled. Iran reportedly canceled its own delegation’s flight, and the White House cited unfinalized logistics for Vance’s absence.
Israeli attacks killed at least 18 people in southern Lebanon overnight, after four Israeli soldiers were killed by a Hezbollah explosive. Iran says the strikes violate the ceasefire, and Vance publicly blamed Israel for impeding the negotiations, warning Israeli officials who had criticized President Donald Trump: “If I was in the Cabinet of the Israeli government, I might not be attacking the only powerful ally that I have anywhere left in the entire world.”
Vance Positioned as Primary Architect
A collapse would land squarely on Vance’s shoulders. The vice president has been positioned — by the White House and by figures on Capitol Hill — as the primary architect and public face of the memorandum of understanding. The agreement was digitally signed over the weekend by Vance and Iranian parliamentary speaker Mohammad Bagher Ghalibaf, with Trump witnessing. Trump signed the document personally days later, before a dinner with French President Emmanuel Macron at Versailles, with Iranian President Masoud Pezeshkian signing remotely.
According to the Washington Examiner, a source close to the vice president confirmed it is a “safe assumption” that Vance personally pushed to be the administration’s face in rolling out the deal. Vance, reportedly wary of war with Iran from the start, joined the negotiating effort roughly a month into the conflict, traveling to Pakistan alongside special envoy Steve Witkoff and Trump son-in-law Jared Kushner to meet Iranian officials. A former senior Trump adviser told the Examiner that Vance understands he will “own” the deal regardless of whether Iran honors it — and that holding the MAGA coalition together may hinge on how he frames the outcome.
Republican Senator Lindsey Graham of South Carolina, a longtime Iran hawk and Trump ally, has repeatedly referred to Vance as “the architect of the deal” — language that those tracking 2028 White House ambitions read as carefully chosen. Graham has demanded that Vance present the memorandum to Congress for review and that any final nuclear agreement be subject to a congressional vote. He has also voiced unease about the terms, saying he was concerned Iran’s understanding of the agreement appeared to differ from the American team’s — a tone measured enough to avoid attacking Trump directly while keeping pressure on his vice president.
Trump’s Joke Looks More Like Forecast
When President Donald Trump joked at the G7 summit that Vance would take the fall if the US-Iran peace deal collapsed, the comment drew laughs. Two days later, it looks less like a punchline and more like a forecast.
“If it works out, I’m going to take the credit,” Trump said with a grin at his closing press conference in Évian-les-Bains, France, on Wednesday, June 17. “If it doesn’t work out, I’m blaming JD. You better be careful, JD.” The room laughed. But in a Washington already split over the deal itself, the question of who owns it has become one of the most consequential political calculations inside the Trump White House.
The remark came after Fox News White House correspondent Peter Doocy pressed Trump on why he was sending Vance to the formal signing in his place. Doocy laid out the dynamic bluntly: delegate the job, and if it works, Trump looks shrewd; if it fails, Vance holds the bag. Trump’s response confirmed that was the calculus, at least in jest. “I like that idea,” the president said, according to the New York Post.
A source close to Trump pushed back on the idea that Vance was being set up as a scapegoat, telling the New York Post that any suggestion Vance bears sole responsibility is ultimately a proxy attack on Trump himself. The administration is betting the deal will bring down gas prices and lift markets — outcomes that, if they materialize, would blunt much of the Republican criticism and make the blame game largely moot.
Details of the Agreement
The MOU calls for an immediate end to military operations, including Israeli actions in Lebanon, the full reopening of the Strait of Hormuz toll-free for at least 60 days, the lifting of US sanctions on Iran, the unfreezing of Iranian assets, and a Gulf Arab investment and reconstruction fund for Iran, with a 60-day window to negotiate a comprehensive final deal. Its full text was initially withheld from the public, with a senior official reading it to reporters by phone only as Trump spoke in France.
Trump, for his part, has tried to manage expectations while leaving himself room to claim victory or assign blame. At the Wednesday press conference, he insisted the MOU was not final and left the door open to renewed force. “It’s a memorandum of understanding, and if I don’t like it, we’ll go back to shooting at them,” he said. He also waved off questions about the reconstruction fund and the release of frozen Iranian assets, saying the money belonged to Iran and had to be returned to maintain international confidence in the dollar.
Republican opposition to the MOU has been sharp and, in some corners, ferocious. Senator Bill Cassidy of Louisiana, who recently lost his Senate primary to a Trump-backed challenger, called the agreement “the worst foreign policy blunder in decades,” posting on X: “Reagan is rolling over in his grave.” Cassidy argued that Iran’s nuclear ambitions were left unchecked, that Tehran has learned it can wield the Strait of Hormuz as a weapon, and that the war cost 13 American lives and more than $100 billion — leaving the country worse off than before hostilities began on February 28. Senator Thom Tillis of North Carolina also withheld judgment, saying he needed to understand the full scope of what the US had committed to.
For now, those outcomes remain hypothetical. With the Switzerland talks postponed, Israeli strikes intensifying in Lebanon, and Iran signaling it may walk, whether Vance emerges from the Iran process as a statesman or a fall guy depends on something neither he nor Trump fully controls: whether the agreement survives its first real test.