◢ Josep Borrell, the current foreign minister of Spain, is a worthy nominee to replace Federica Mogherini as the EU’s top diplomat. His views on Iran suggest continuity with Mogherini’s pro-engagement policy and willingness to push back on the Trump administration’s unilateralism. But as the crisis over the JCPOA accelerates, the situation Borrell will inherit in a few months may prevent him from keeping the EU engaged in constructive dialogue with Iran.