Update(10:00ET): With Vance and Witkoff in Switzerland, President Trump is still issuing some US redlines via Truth Social, and via apparent 'official leaks' - and quite quickly - through the press.Trump is warning the Iranians on the sticking points of Hormuz closure and the Lebanon crisis. He has newly threatened on Sunday to hit Iran again if it can't constrain its proxies, namely Hezbollah, in Lebanon. In parallel, Tehran is demanding that Washington reign in Israel. A fresh Sunday Truth Social... brief but firm:

And more on some fresh reported warnings and pressure coming from Trump:"You close it and you won't have a country." President Trump said he told Iranian officials about the Strait of Hormuz. "You won't even make it back to your fu*king country."

"We may take over the Strait, if we have to," Trump said. "If they don't make a deal, we'll collect… pic.twitter.com/cErvdjCJmK

— Trey Yingst (@TreyYingst) June 21, 2026As the American delegation continues the high-stakes negotiations in Switzerland aimed at de-escalating, the White House is projecting cautious optimism while simultaneously reminding Tehran that military options remain firmly on the table.Speaking as talks entered a critical phase, Vice President JD Vance said Sunday from Switzerland Washington has "made great progress over the last few hours" and expects "additional progress in the coming hours," describing the negotiations as an opportunity to "turn over a new leaf" in US-Iran relations. Vance emphasized that the administration's preference is not to return to the cycle of confrontation, adding that the US is willing to fundamentally transform ties with Iran if Tehran permanently abandons its nuclear ambitions."The question is how much more we can achieve in the Middle East," Vance said, while expressing confidence regarding the Lebanon front and signaling satisfaction with ongoing efforts to contain broader regional escalation.Yet Trump has just delivered a stark reminder of the consequences should negotiations fail. According to Fox News, Trump warned Iranian officials that closing the Strait of Hormuz would be an existential mistake, reportedly telling Tehran that it "won't have a country" if it attempts to choke off global energy flows, in the segment above. Trump also issued a personal warning to Iranian President Masoud Pezeshkian, saying he "better watch his mouth," while reports indicated the president used unusually blunt language during discussions with Iranian intermediaries over the strategic waterway.President Trump spoke with the Iranians overnight warning them not to close the Strait.