Vice President JD Vance has delayed a planned trip to Switzerland for new talks with Iran, raising fresh questions about the future of President Donald Trump’s tentative agreement to end the war.
The White House said Vance’s delegation had been prepared to leave, but the trip was postponed because of logistical issues. Officials said the talks are still expected to begin as soon as possible, though the exact timing remains unclear.
Vance had been expected to lead a new round of negotiations focused on Iran’s nuclear program and the next phase of the U.S.-Iran agreement. The talks were originally expected to take place in Switzerland after the two sides signed an initial pact.
The delay comes as Iran’s participation appeared uncertain. Reports said Iranian officials had concerns about travel arrangements and regional tensions, especially after Israeli military activity in Lebanon complicated the fragile diplomatic process.
The Trump administration has defended the agreement as a major step toward peace. Vance argued that the deal could help reopen shipping through the Strait of Hormuz, lower energy prices and prevent a wider economic crisis.
Critics, including some Republicans, have warned that the deal may give Iran too much economic relief too quickly. They have raised concerns about sanctions relief, oil exports and a proposed reconstruction fund connected to the agreement.
Vance pushed back against those criticisms, saying Iran must meet U.S. demands before receiving larger benefits. He said economic relief could increase if Iran behaves responsibly, but could also be stopped if Tehran fails to comply.
The agreement is expected to open a 60-day negotiation period. During that time, the two sides are expected to work on broader issues, including nuclear inspections, uranium stockpiles and long-term security commitments.
For now, the delayed Switzerland trip shows how fragile the diplomatic process remains. While the White House insists talks are still moving forward, the timing, format and participation of the next round remain uncertain.
