The EU trade commissioner, Maroš Šefčovič, was far more blunt this morning. Arriving for talks with EU foreign and trade ministers, he said:”Let’s be honest, the idea of 30% tariff rate is effectively prohibitive to the mutual trade… He added that such tariffs would make it “almost impossible to continue the trading as we are used to,” with supply chains on both sides of the Atlantic “heavily affected” by the change.