Last mentioned: Feb 21, 2026
SCOTUS Ruling
The Supreme Court issues a landmark judgment declaring the tariffs unconstitutional and a violation of the separation of powers.
Supreme Court Ruling
SCOTUS strikes down the tariffs, ruling the executive branch overstepped its constitutional authority.
Tariff Implementation
The Trump administration imposes sweeping global tariffs citing national security and economic emergencies.
Tariff Implementation
The Trump administration uses IEEPA to impose sweeping tariffs on global imports.
Katyal Appointment
Neal Katyal is appointed Acting Solicitor General of the United States by President Barack Obama.
Katyal Appointment
Neal Katyal is appointed Acting Solicitor General of the United States by President Obama.
IEEPA Enacted
Congress passes the International Emergency Economic Powers Act to grant presidents authority to regulate commerce during emergencies.
IEEPA Enacted
Congress passes the International Emergency Economic Powers Act to manage foreign threats.
The U.S. Supreme Court has struck down President Donald Trump’s sweeping import tariffs, ruling that the executive branch overstepped its authority under the International Emergency Economic Powers Act (IEEPA). Led by former Acting Solicitor General Neal Katyal, the legal challenge successfully argued that the power to impose taxes remains the exclusive domain of Congress.
The US Supreme Court has delivered a landmark ruling overturning President Trump’s sweeping tariffs, asserting that the executive branch cannot use emergency powers to bypass Congressional taxing authority. Led by former Acting Solicitor General Neal Katyal, the legal challenge successfully argued that the 1977 International Emergency Economic Powers Act does not grant the presidency unilateral control over trade levies.