ABSTRACT Donald Trump’s tenure as President of the United States has been among the most disruptive in American history. In many areas, President Trump has upended convention, undermined norms, and cast aspersions on a host of institutions. Trump’s imposition of punitive tariffs on steel and aluminum, along with the threat to withdraw from the NAFTA have been significant threats to the Canadian economy. The President’s instincts on trade may be one of the few constants in a worldview on foreign policy that has otherwise lacked consistency. This article argues that Trump’s actions on trade have other precedents in American history, many of which have similarly embroiled Canada.

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特朗普的“美国体系”与加拿大

摘要 唐纳德·特朗普 (Donald Trump) 担任美国总统的任期是美国历史上最具破坏性的任期之一。在许多领域，特朗普总统颠覆了惯例，破坏了规范，并对许多机构进行了诽谤。特朗普对钢铁和铝征收惩罚性关税，并威胁退出北美自由贸易协定，对加拿大经济构成重大威胁。总统对贸易的直觉可能是外交政策世界观中为数不多的常态之一，否则就缺乏一致性。这篇文章认为，特朗普在贸易上的行动在美国历史上还有其他先例，其中许多也同样卷入了加拿大。