Vice President JD Vance has delayed his trip to Switzerland to lead new US talks with Iran on its nuclear program, part of a fragile agreement that is already showing cracks less than a week after it was signed. The postponement comes as Israeli strikes in southern Lebanon threaten to unravel the 14-point memorandum of understanding that Vance himself has championed — and that President Donald Trump has made clear will be pinned on his vice president if it falls apart.
At his closing press conference in Évian-les-Bains, France, on Wednesday, June 17, Trump offered what sounded like a joke but carried unmistakable political weight. “If it works out, I’m going to take the credit,” the president said with a grin. “If it doesn’t work out, I’m blaming JD. You better be careful, JD.” The room laughed, but the remark has taken on new resonance as the deal Vance negotiated enters its most vulnerable phase.
Fox News White House correspondent Peter Doocy had asked Trump why he was sending Vance to the formal signing instead of attending himself, framing the move as a way to claim success or deflect failure. Trump didn’t dispute the logic. “I like that idea,” he said, according to the New York Post.
Vance Positioned as the Deal’s Architect
Vance has emerged as the public face of the agreement, both by design and by necessity. The memorandum of understanding was digitally signed over the weekend by Vance and Iranian parliamentary speaker Mohammad Bagher Ghalibaf, with Trump witnessing. Days later, Trump signed the document personally before a dinner with French President Emmanuel Macron at Versailles, while Iranian President Masoud Pezeshkian signed 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. Reportedly wary of war with Iran from the start, Vance 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.
Lebanon Strikes Trigger Delay
On Friday, June 19, Switzerland’s foreign ministry confirmed that the first US-Iran negotiations, planned for the Bürgenstock mountain resort, would not take place as scheduled. The White House said Vance would delay his travel to Switzerland, citing unfinalized logistics, and Iran reportedly canceled its own delegation’s flight. The talks were meant to launch a 60-day window to hammer out a permanent agreement.
Intense new Israeli strikes in southern Lebanon — which Iran says violate the ceasefire — cast immediate doubt on the deal just days after it was signed. Israeli attacks killed at least 18 people in southern Lebanon overnight, according to reporting, after four Israeli soldiers were killed by a Hezbollah explosive. Vance, for his part, publicly blamed Israel for impeding the negotiations, warning Israeli officials who had criticized 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.”
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.
Republican Critics Sharpen Attacks
Opposition among Republicans 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.
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.
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.
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.
