Trump's tariffs on Canadian goods represent a long-overdue assertion of American economic sovereignty against a neighbor that has long exploited open markets while shielding its own industries. As talks collapsed, the administration moved decisively with steep duties that will raise costs on lumber, dairy, and autos, forcing consumers to confront the real price of dependency on foreign supply chains. This matters because it rejects the bipartisan consensus that endless trade deficits somehow strengthen the republic. The Constitution grants Congress and the executive clear authority to regulate foreign commerce precisely to secure the nation's independence, not to subordinate it to the fiction of frictionless global exchange. Limited government at home demands strength abroad; free markets thrive only among equals who play by reciprocal rules, not when one side absorbs the burdens of another's protectionism. Canadians and their American enablers may complain, but sovereignty was never meant to be outsourced. True prosperity follows when leaders put citizens first rather than chasing approval from Ottawa or Davos.