President Biden’s commitment to re-entering the Iran nuclear deal—formally known as the Joint Comprehensive Plan of Action or JCPOA—is already facing backlash from a motley crew of warhawks both domestic and foreign. Right now, opponents of re-entering the deal are centering their vitriol on one of the nation’s foremost experts on both the Middle East and diplomacy: Robert Malley, who Biden might tap to be the next Iran envoy.