伊朗最高领袖哈梅内伊：我认为与美国的核谈判不会成功。

Group 1 - The core viewpoint is that Iran's Supreme Leader Khamenei believes that negotiations with the United States regarding nuclear issues will not be successful [1] Group 2 - The statement reflects ongoing tensions between Iran and the U.S. regarding nuclear negotiations, indicating a lack of optimism for future diplomatic resolutions [1]