With the one-year mark of the Iran deal signing around the corner, it is important to assess what it has – or has not – accomplished so far. According to the International Atomic Energy Agency, Iran has complied with its initial obligations of reducing its stockpile of low-enriched uranium and undertaking revisions of its nuclear facilities. For their part, the United States and the international community have eased many of the sanctions that have stifled Iran’s economy for years. Yet critics continue to argue that the deal is flawed because constraints on Iran’s nuclear program lapse after fifteen years, while Iran complains that promised economic benefits are slow in coming. Moreover, relations between the two countries continue to be defined by mistrust and tension. Was the deal worth it? Is there evidence that the deal is allowing Iran greater regional influence now that it has regained some of its international credibility? Will it become one of the Obama administration’s defining foreign policy successes, or is implementation revealing its fatal flaws?