WASHINGTON — Coaxed by European allies, the Biden administration and Iran are crawling toward reviving the landmark nuclear accord that would delay Tehran's building of a bomb, but obstacles still threaten to send everyone home empty-handed.
The potential resolution would cap nearly 18 months of indirect talks in Vienna, where the Europeans have been working as mediators shuttling between U.S. and Iranian delegations.
"This is the equilibrium we have reached, and I don't think we can improve on one side or the other," Josep Borrell, the foreign policy chief of the European Union, said Monday in describing the proposal on the table as a "final offer."
