Livemint Published Dec 2, 2025, 05:42 IST Costco plans to join a fast-growing list of companies suing the Trump administration to ensure they are eligible for refunds if the global tariff policy imposed by the US president is struck down by the Supreme Court. Dozens of companies have filed lawsuits in a U.S. trade court since late October challenging Donald Trump’s use of emergency powers to impose tariffs, and now the nation’s largest warehouse club chain has decided to follow suit. This is a developing news. Check back later for more details.