Project Syndicate • 12/15/2025

The article argues that Donald Trump's presidency signifies a turning point in the decline of American hegemony, altering the U.S.'s global role through his foreign policy decisions, including his withdrawal from the Paris Agreement and criticisms of NATO. It draws parallels between historical hegemonic declines and current U.S. foreign policy, suggesting that the rise of multipolarity and rival powers like China and Russia are reshaping global dynamics. The analysis combines historical and contemporary perspectives, indicating that while the decline of hegemony is not new, Trump's presidency may represent a unique moment in this narrative. The topic is assessed as a "Root" behavior, reflecting enduring patterns in power dynamics and international relations, and is expected to remain relevant in political and academic discussions.
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