This summer, twenty-five American states filed suit against the president over his unilateral imposition of tariffs, forcing a constitutional reckoning about the boundaries of executive power that has reverberated far beyond any courtroom. The dispute is, at its surface, a legal argument about trade authority — but beneath it lies a deeper transformation: the slow dismantling of the post-war vision of trade as a shared engine of prosperity, replaced by a world in which tariffs, semiconductors, and supply chains have become the instruments of geopolitical rivalry. What is being contested in fed