The European Union has a powerful tool to fight trade disputes. Could it use it against the United States. Donald Trump is ramping up the pressure on the EU.He wants the block to agree a deal by August the 1st, or he's going to impose 30% tariff on most of the EU's exports. Should negotiations with the US fail, a growing number of member states wants the EU to activate its most potent trading tool, the so-called anti-coercion instrument. It gives the EU legal cover to hit back beyond the traditional boundar ...