The U.S. Chamber of Commerce, representing millions of businesses, is considering filing a lawsuit against the Trump administration to block the implementation of new tariffs set to take effect on Wednesday at 12:01 a.m. EDT. These tariffs, announced through the International Emergency Economic Powers Act (IEEPA), include a 104% tariff hike on Chinese imports and additional tariffs on other countries. The Chamber, under pressure from major corporate members, argues that the use of emergency powers to impose tariffs is unlawful and exceeds presidential authority. Businesses fear the economic impact of the tariffs but are hesitant to openly criticize the administration, prompting trade associations to take the lead in legal challenges. The World Trade Organization (WTO) and International Monetary Fund (IMF) have also issued warnings about the potential global economic risks posed by these tariffs. Separately, the New Civil Liberties Alliance, a conservative legal group funded by Charles Koch and Leonard Leo, has already filed a lawsuit in Florida on behalf of Simplified, a small business that sells organizational tools reliant on Chinese imports. The group claims that the tariffs violate the Constitution by bypassing Congress's authority to regulate foreign commerce and impose taxes. In addition, a lawsuit filed by Montana residents challenges the IEEPA-based tariffs, further raising the possibility of the issue reaching the Supreme Court. Critics argue that the tariffs, justified by the administration as addressing national emergencies like the opioid crisis, lack a direct connection to the stated reasons and could harm U.S. businesses and consumers.