美國政府高級官員：美伊協議有80%至85%的概率能夠簽署。

A senior U.S. official told CNN that Iran has committed to permanently not seek or develop nuclear weapons, a concession Washington described as significant. The official said the deal is designed to establish verification and inspection mechanisms and to withhold benefits until the U.S. can verify Tehran has taken concrete steps to dismantle its nuclear program. Negotiators had discussed 10- or 20-year non‑weapons pledges; the official noted prior U.S. objections, including from Trump, that time‑limited bans were insufficient. The U.S. said it would permit Iran civilian nuclear energy but opposes infrastructure that could enable a weapons breakout.

Russia's special representative for G20 and APEC affairs said on the 13th that Moscow's participation in the US-hosted G20 summit in December is being obstructed after the Russian Union of Industrialists and Entrepreneurs and the Russian Academy of Sciences were added to US sanctions lists, preventing related personnel from entering the United States. Moscow has submitted diplomatic protests and warned it will not recognise a G20 summit or its outcomes held without Russian participation. The summit is scheduled for Dec. 14-15 in Miami.