Iran's approach to foreign policy changed dramatically after Hassan Rouhani was elected President of Iran in 2013. The most serious and comprehensive negotiations regarding Iran’s nuclear program started in 2013 between Iran and six world powers including the United States. An interim agreement was reached on November 24, 2013. A framework agreement was reached on April 2, 2015. And finally, the comprehensive deal was reached on July 14, 2015 to ensure that Iran’s potential pathway to developing a nuclear weapon is blocked.

Iran’s public diplomacy has long been geared toward selling a possible deal to hard-liners at home. [...] the government seemed to recognize the need to prove that it had done all it could to obtain a final agreement.