President Trump’s policy speech on Iran confronted the regime and its compliance with the nuclear deal. It also raised more questions than it answered. Will ‘decertification’ sink Iran’s economic plans, or is it just more White House sophistry?

On 13 October, US President Donald Trump outlined his “strategy” toward Iran and announced that he would not certify Iran’s compliance with the Joint Comprehensive Plan of Action (JCPOA). This came despite...