The Previous DealAlthough Trump has shown waning interest in negotiating a new nuclear deal, he has been obsessed with the nuclear deal of 2015, the Joint Comprehensive Plan of Action. The Saudi nuclear deal, if implemented, would pose additional obstacles. A New AuthorityI have proposed the creation of a new international authority under UN auspices to negotiate a nuclear deal and establish IAEA monitoring and verification. The model for an international authority today could be the multinational coalition that produced the nuclear deal in 2015. Multinational diplomacy offers the best option for preventing continued war and nuclear proliferation in the region.