In May 2010, Turkey and Brazil surprised the world when they succeeded in getting Iran’s acceptance for a nuclear swap deal. To Turkey and Brazil’s surprise, their diplomatic victory was rejected by the Barack Obama administration. Washington miscalculated the diplomatic skills of Brazil and Turkey and their ability to take on diplomatic challenges usually reserved for the great powers. Fastforward three years, and suddenly diplomacy with Iran was embraced by Washington. Why did the same American administration that rejected the Turkish brokered deal in 2010, shift in favor of diplomacy in 2013? This essay sheds light on some of the factors that rendered the nuclear standoff with Iran ripe for a diplomatic solution.