Trump's plan to slap 50 percent tariffs on Canadian goods unless Ottawa drops its barriers against American products marks a direct challenge to decades of one-sided trade that has cost U.S. workers dearly. This action forces reciprocity from a neighbor that has benefited from open access to our market while shielding its own producers, exposing the political class's habit of prioritizing alliances over American economic strength. It matters because it breaks the pattern of endless concessions that erode domestic industry and sovereignty. The Constitution assigns Congress power over foreign commerce precisely to protect the nation's interests, and tariffs have long served as legitimate leverage to secure fair terms rather than abstract global integration. Genuine free markets require mutual openness, not the exploitation that lets foreign governments tilt the field while our consumers and manufacturers absorb the losses. Trump's stand reminds us that economic independence remains essential to preserving liberty against external pressures.