贸易分析师：特朗普信函或致使欧盟报复信念加强

Core Viewpoint - The letter from Trump to the EU may strengthen the belief among EU members for retaliation against the U.S. due to perceived insincerity in negotiations [1] Group 1: Trade Negotiations - Dan Maloney, former U.S. Assistant Trade Representative for Europe and the Middle East, suggests that Trump's letter aims to push the EU towards a better agreement [1] - Trump's previous threat in May to impose a 50% tariff on the EU appears to have accelerated the negotiation process [1] Group 2: EU Response - Maloney indicates that the letter could embolden those within the EU who advocate for retaliation, as they may feel justified in their stance [1] - There is a concern that the perception of U.S. insincerity in reaching an agreement could lead to a more aggressive EU response [1]