It has been a long, precarious month since the Apr. 8 ceasefire in the war between the United States and Iran. Although reports in recent days have once again hinted at movement toward a possible deal, negotiations over a durable end to the conflict have repeatedly faltered over differences between the two countries on a range of issues, from Iran’s nuclear program to control over the Strait of Hormuz. Indeed, this week, the Trump Administration and Iranian officials have continued to issue contradictory and briskly changing  statements about the state of war and peace talks, adding opacity and uncertainty to a picture that is already obtuse. Yet over the details hangs an even more fundamental question: who, exactly, is running Iran?…