Trust, but verify Trust, but verify Trust, but verify (; "Doveryat, no proverit") is a Russian proverb. The phrase became well known in English when used by President Ronald Reagan on multiple occasions in the context of nuclear disarmament. Suzanne Massie, an American writer, met with President Ronald Reagan many times between 1984 and 1987. She taught him the Russian proverb "Doveryai, no proveryai" (; "Trust, but verify"), advising him that "The Russians like to talk in proverbs. It would be nice of you to know a few. You are an actor – you can learn them very quickly." The proverb was adopted
Negotiations leading to the Joint Comprehensive Plan of Action include President Barack Obama. Prominent opponents include Israeli Prime Minister Benjamin Netanyahu, former Secretaries of State Henry Kissinger and George P. Schultz, and Democratic Senator Bob Menendez. Obama has argued that failure of the negotiations would increase the chance of a military confrontation between the United States and Iran. In an interview with Thomas Friedman, Obama argued that an agreement would be the best chance to ease tensions between the US and Iran. Opponents have countered that the proposed deal would concede to Iran a vast nuclear infrastructure, giving it the status of a threshold nuclear state. They argue that