ABSTRACT This article assesses whether Donald Trump’s impact on Canada–US issues such as trade, energy and the environment, and border security could be ephemeral or durable. We answer this question by examining the extent to which Trump’s agenda on Canada–US relations has gained ground in the “Great Lakes heartland” bordering Ontario and the “northeastern borderlands” bordering Québec. To do this, we study the 2018 US midterm electoral debates on Canada–US relations in nine states: Minnesota, Wisconsin, Michigan, Illinois, Ohio, New York, Vermont, New Hampshire and Maine. We conclude that: (a) Trump has succeeded in placing Canada and key Canada–US issues at the forefront of political and electoral discussions in these states; and (b) Trump’s agenda and attitude towards Canada have been adopted by a myriad of local actors who had a more positive view of Canada before the 2016 presidential election.

中文翻译：

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短暂的还是持久的？唐纳德特朗普对五大湖中心地带和东北边境地区的加美问题的影响

摘要 本文评估了唐纳德·特朗普对加美贸易、能源和环境以及边境安全等问题的影响是短暂的还是持久的。我们通过研究特朗普关于加美关系的议程在与安大略接壤的“五大湖中心地带”和与魁北克接壤的“东北边境地带”取得多大进展来回答这个问题。为此，我们研究了 2018 年美国关于加美关系的 9 个州的中期选举辩论：明尼苏达州、威斯康星州、密歇根州、伊利诺伊州、俄亥俄州、纽约州、佛蒙特州、新罕布什尔州和缅因州。我们的结论是： (a) 特朗普成功地将加拿大和关键的加美问题置于这些州的政治和选举讨论的前沿；