A billboard featuring a portrait of Iran’s Supreme Leader, Ayatollah Ali Khamenei, in Tehran, Iran, July 28, 2025. Khamenei “is an avowed Holocaust denier,” New York Times columnist Bret Stephens writes. (Nanna Heitmann/The New York Times) By BRET STEPHENS Notable among the slogans being chanted by the protesters flooding Iran’s streets is this one: “Neither Gaza nor Lebanon, my life for Iran.” That’s more than a repudiation of the regime’s foreign policy. It’s a reminder that a policy of...