Meanwhile, US Vice President JD Vance defended the deal, saying he would likely head to Switzerland for talks to turn it into a long-term agreement.

Senate Republicans say there are many unanswered questions about the deal and question inclusion of funds for Iran

The Iran–U.S. deal that looked moments away from being sealed has just hit a dramatic wall. On June 16, as Iran’s top diplomat declared that the “war with the United States was…