Twelve states have filed a lawsuit against President Donald Trump's tariff policy, arguing it disrupts the constitutional balance of power by undermining Congress' authority to regulate foreign commerce. Spearheaded by Arizona and Oregon's Attorneys General, the lawsuit seeks to halt the enforcement of tariffs imposed under a wartime law, claiming the application of this law is unlawful and has led to economic instability. The case highlights ongoing debates about presidential powers in trade matters and could significantly impact the balance of power between the executive branch and Congress.