TORONTO (AP) — Mark Carney drew international attention as Canada’s prime minister by warning that middle powers must resist economic coercion by more powerful countries. Now President Donald Trump is putting that warning to the test with sweeping new tariffs that could show how much economic pain Canada can absorb.Tensions escalated late Friday when Canada walked away from negotiations after Carney concluded the United States was demanding too much in exchange for tariff relief. The U.S. imposed 50% duties Saturday on about $20 billion worth of Canadian goods, and Carney announced dollar-for-dollar retaliation beginning Sept. 8.“We’re going to hit back,” Carney said.Carney is doing what many other American allies have so far avoided: risking economic pain rather than yielding to tariff pressure.For Carney, the showdown is the clearest test yet of his argument that middle powers must stand up to economic pressure from great powers such as the United States and China, even when it comes at a cost. Canada’s response could show how countries navigate a world in which long-standing alliances offer less protection and economic ties themselves become sources of leverage.
It could also shape how Carney is viewed at home and abroad, and how other U.S. allies respond to the Republican president.The trade dispute also has become a test of sovereignty.









