==== In a previous post <Why U.S. Tariffs Put Pressure on Other Countries>, I explored why Trump’s “reciprocal tariff” policy has pressured so many countries into trade negotiations. The answer was clear:Because the U.S. consumer market is the single most powerful bargaining chip in global trade. But this raises a deeper question:Can the U.S. wield … More Tariffs as a Weapon: Powerful but Not Invincible – The Pressure Behind Trump’s Trade Strategy (關稅武器雖強，美國也非無敵：川普對外施壓的背後壓力與副作用)