President Donald Trump's implementation of tariffs on nearly every country has led to at least seven lawsuits challenging the legality of his actions. The lawsuits argue that Trump exceeded his authority by declaring a national emergency to justify the tariffs imposed on imports from multiple nations. A panel of three judges at the U.S. Court of International Trade pressed the Justice Department to clarify the basis for the national emergency declaration during a hearing. Among the plaintiffs are pro-corporate groups, Democrat-led states, and five small businesses seeking to halt the so-called 'Liberation Day' tariffs. The legal challenges focus on whether the president has the power to impose such broad tariffs under the national emergency invoked in April 2025.