Costco is one of the companies suing the Trump administration over tariffs. The company wants to get its money back if the Supreme Court says the tariffs are unfair. Costco filed a lawsuit in federal court, hoping to be eligible for a full refund if the court rules against the administration’s reasons for collecting tariffs under a special law.
Source: https://www.wsj.com/politics/policy/costco-joins-companies-suing-trump-administration-over-tariffs-ab1bb066