As Iran’s nuclear program makes troubling advances, President Joe Biden is set to huddle Saturday with European allies to talk through strategy as they press for a diplomatic resolution — and to plan for the possibility Iran declines to return to the negotiating table.
The meeting with the leaders of Germany, France, and Britain — known as the E3 — comes at a pivotal time, as Iran continues to enrich uranium to near-weapons-grade levels. Biden is trying to revive the 2015 nuclear deal and bring Iran back into compliance with the pact that would have kept the Islamic republic at…