Why might Tehran not trust Vance's new message? Wali was banned:
The letter to Razai allows Vance to say that given his view of the 2028 presidential election and his awareness of how unpopular war is among the MAGA base, he is doing everything he can to prevent another round of war. But the problem is that last time it was Vance who negotiated the MOU; But the next day, it was Marco Rubio who took over and just two weeks later, the war was back. Therefore, Iran will probably suspect that the same scenario is repeating itself again.