Comment / What's next if Supreme Court knocks down Trump’s IEEPA tariffs?

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President Trump’s use of the International Emergency Economic Powers Act (IEEPA) to impose sweeping tariffs on countries like China, Canada, and Mexico has faced intense legal challenges, culminating in the Supreme Court’s imminent ruling*. The controversial moves hinge on whether the president’s authority under IEEPA includes the power to raise tariffs, a question fraught with constitutional and trade policy implications.

(*My previous take on ’trade risk’ is here, with focus on UPS)

At the heart of the debate is whether IEEPA allows ...