Early in his second term, President Donald J. Trump sought to make Canada the 51st state through economic pressure and rhetoric, but instead pushed Canada toward closer ties with the European Union. The EU's invitation for Canada to become an "associate member" is seen as a direct consequence of Trump's antagonistic diplomacy, which included trade wars and public derision of Canadian leaders like Justin Trudeau and Mark Carney.

Analysts note this shift undermines trust in the U.S. as a reliable ally, with Trump's actions energizing Canada's liberal party and complicating Republican prospects in swing states. Trump responded with fury, threatening tariffs on Europe if the move was perceived as hostile. His broader focus on the Western Hemisphere, including threats to Greenland and the Panama Canal, reflects his "Trump Corollary" to the Monroe Doctrine, asserting U.S. dominance in the region.

Despite territorial ambitions elsewhere, Trump's fixation on Canada remains rooted in trade and economics, not territorial expansion.