Costco has filed a lawsuit against the Trump administration over tariffs, becoming one of the largest companies to seek refunds if the Supreme Court rules these import duties illegal. The company hopes to recover money paid on tariffs, which have been imposed on nearly all imports under Trump's trade policies. The Supreme Court is currently examining the legality of these tariffs, with justices appearing skeptical during recent oral arguments. Lower courts previously found that Trump misused emergency economic powers to implement the tariffs. Several companies, including Revlon, Bumble Bee, and Kawasaki, have also filed lawsuits seeking refunds, signaling a broader legal challenge to the tariffs. Costco, which derives about a third of its U.S. sales from imported goods, expressed concern that it might not recover all paid tariffs even if the tariffs are overturned. The lawsuit highlights the financial impact of tariffs on large corporations and the ongoing legal disputes over their legality. Meanwhile, opinion pieces emphasize that President Trump’s tariffs primarily harm small businesses, which lack the resources to absorb higher costs. Public-interest law firms have supported small business plaintiffs in legal challenges against the tariffs, illustrating the broader economic and political debates surrounding trade policy and its effects on different business sectors.