When Iranian voters rallied behind Hassan Rouhani in 2013 as their surprise choice for president, they picked a reformer who promised to end the crushing pain of international sanctions. On Saturday, Rouhani delivered, securing the long-sought economic relief that Iran craved and the country’s enemies desperately opposed. Yet, it is still unclear whether Rouhani’s windfall — up to $50 billion in unfrozen assets and freedom from severe trade restrictions — will be enough to secure a future for his presidency and the more moderate, pragmatic Iran he is seeking to build. Western powers formally approved the removal of the most onerous economic sanctions after Iran honored promises to significantly curtail key […]