Outside of conservative political backlash there still remains a great litany of economic, social, and military challenges to the implementation of the Iran nuclear deal within Iran itself. Much of the popular support for the Iran deal comes from the public's perception of economic upsurges as a result of the sanctions relief brought on by the JCPOA. If the Iranian economy continues to remain stagnated, and foreign investment remains low, it is likely the public will turn away from the nuclear deal since it did not bring the level of economic relief that many Iranians banked their support of the deal on. This is evidenced by the 13% drop in approval of the deal among Iranians in the year after the deal was reached. Even after the implementation of the JCPOA many foreign investors have remained weary of Iran. Decades of global economic isolation have strengthened the "economy of resistance", or the self-sufficient economy developed under sanctions, and as a result many businesses are actually front companies for or directly linked to the Islamic Revolutionary Guard Corps. Other aspects that have hampered foreign direct investment in the wake of the Iran deal include high levels of corruption and the arrest of foreigners suspected of espionage. Insufficient economic growth will almost assuredly impede the reformist presidency of Hassan Rouhani and lead to conservative gains that can further impede the JCPOA.
