The Brief Arizona and 24 other states filed a federal lawsuit to block new federal tariffs. The lawsuit targets tariffs imposed on 59 countries and the European Union that cover nearly 100% of U.S. imports. Arizona is one of 25 states taking the White House back to court over trade policies. Attorneys general from these states filed a major federal lawsuit challenging the Trump administration’s latest round of tariffs. A major legal battle over the U.S. economy is brewing once again as Arizona’s top prosecutor joins a multi-state lawsuit pushing back against federal trade policy.