Fixing Trump's Iran problem

President Trump has an Iran problem. He has inherited a nuclear deal that he opposes but that he cannot change. The financial and economic sanctions that forced Iran to negotiate are largely gone and ending the agreement would remove controls over Iran’s nuclear activities. Trump’s current approach is rhetoric, sticking to the nuclear deal, minor sanctions, and a policy review. Instead, he needs a strategy to fill President Barack Obama’s policy gaps on nuclear weapons research, missiles, and human rights.