The Iranian president’s signature achievement, a landmark nuclear deal with world powers, is starting to unravel, and his economy is in distress even before renewed U.S. sanctions begin to bite, with Iran’s currency swooning to record lows against the dollar. His domestic opponents are clamoring for his resignation. One conservative Iranian news outlet even likened him this week to the disgraced former British prime minister Neville Chamberlain for allegedly trying to appease Western powers by trying to salvage the nuclear deal. But even as he faces the most serious challenge yet to his presidency, Hassan Rouhani has forged ahead with efforts to save the accord and, by extension, his own credibility. Longtime observers say it is far too early to count Rouhani out. They point to his skills […]