In a blow to the Trump administration's trade policy, the Supreme Court ruled that the president cannot use the International Emergency Economic Powers Act (IEEPA) as a legal basis to impose tariffs. The Trump administration has relied on IEEPA tariffs as a tool of both economic and diplomatic coercion, seeking to reshape the global trading system and generate revenue for the United States.

The full implications of today's ruling remain unclear, with significant questions outstanding on what new tariffs the administration might introduce to replace IEEPA tariffs, how and whether tariff refunds will be issued, and what will happen to the trade deals signed with foreign governments in recent months.

In a live discussion, Geoff was joined by Carrie Cordero, director of the CNAS National Security Law Program, and Chris Kennedy, CNAS adjunct senior fellow and senior economist with Bloomberg Economics' Geoeconomics practice, to discuss the ruling.