Overview

• A coalition of 12 states, led by Arizona and Oregon, filed a lawsuit in the U.S. Court of International Trade on April 23, challenging President Trump's tariffs.
• The lawsuit argues that the tariffs violate the Constitution by bypassing Congress's exclusive authority to impose taxes and regulate trade.
• President Trump invoked the 1977 International Emergency Economic Powers Act to justify the tariffs, a use the states claim is unprecedented and unlawful.
• The tariffs, which target imports from countries including China, Canada, and Mexico, have led to economic uncertainty and higher consumer costs, according to the plaintiffs.
• The states seek a court order to declare the tariffs illegal and to prevent federal agencies from enforcing them.