The other countries will essentially have to whisper in the ear of Iran and the U.S. and pass notes between them. The Biden White House says it can’t make any “unilateral gestures” and requires Tehran to start adhering to the agreement. Each side expects the other to do something first, and yet neither is willing to take that initial step. The problem is sequencing — of doing something that doesn't cause them to lose face. Iran, with its struggling economy, is careering toward elections in June that could see hardliners regain the upper hand.
Source: Libya Today April 06, 2021 10:18 UTC