A Constitutional Clash: Trump's Tariffs and the Separation of Powers

Overview This episode examines the Supreme Court's September 9, 2025 Order that expedited review of two consolidated cases challenging President Trump's authority to impose sweeping tariffs under the International Emergency Economic Powers Act (IEEPA), representing a constitutional clash over the separation of powers and presidential trade authority. Roadmap Opening: Explosive Constitutional Questions September 9, 2025 certiorari grant and consolidation order Expedited briefing schedule for November 2025 oral arguments Stakes: Presidential power to tax trillions in trade and reshape the economy Background: The Trump Tariff Orders Reciprocal Tariffs : 10% on virtually all imports, higher rates for 57 countries Trafficking Tariffs : Levies on Mexico, Canada, and China for drug enforcement IEEPA as claimed statutory authority for both tariff schemes National emergency declarations underlying the orders The Central Legal Question Does "regulate" in IEEPA include power to impose tariffs? Constitutional separation of taxing vs. regulating powers Article I distinctions between taxation and commerce regulation Historical significance: "No taxation without representation" Lower Court Journey Multiple simultaneous lawsuits in different courts District court and Court of International Trade conflicting approaches Federal Circuit en banc decision striking down tariffs Judge Taranto's influential dissent supporting tariff authority Referenced Cases Trump v. V.O.S. Selections | Case No. 24-1286 | Docket Link: Here Question Presented : Whether IEEPA authorizes the President to impose these specific sweeping tariffs Government Arguments : "Regulate" includes power to impose tariffs as lesser-included authority Historical practice supports broad executive trade power during emergencies Major questions doctrine doesn't apply in foreign policy contexts V.O.S. Arguments : Constitutional separation requires clear authorization for taxation "Regulate" and "tariff" are distinct powers with different purposes Major questions doctrine requires explicit congressional authorization Learning Resources v. Trump | Case No. 24-1287 | Docket Link: Here Question Presented : Whether IEEPA authorizes any presidential tariffs whatsoever Learning Resources Arguments : "Regulate" means control behavior, "tariff" means raise revenue - fundamentally different No historical practice of IEEPA tariffs in nearly 50 years Constitutional avoidance: IEEPA covers exports where tariffs are prohibited Government Arguments : Plain text of "regulate importation" naturally includes tariff authority Yoshida precedent shows Congress ratified tariff interpretation Presidential action deserves greater deference than agency action Key Legal Precedents Examined Historical Foundation Cases Gibbons v. Ogden (1824) : Marshall's distinction between taxing and regulating powers United States v. Yoshida International (1975) : Nixon import surcharge precedent Federal Energy Administration v. Algonquin SNG (1976) : "Adjust imports" includes fees Modern Constitutional Doctrines Major Questions Doctrine : Clear authorization required for "vast economic and political significance" Constitutional Avoidance : Interpreting statutes to avoid constitutional problems Noscitur a Sociis : "Word known by company it keeps" interpretive principle Strategic Legal Arguments Government's Core Position Textual : "Regulate" includes "control" and "adjust by rule" - tariffs qualify Historical : Congressional ratification of Yoshida through IEEPA enactment Foreign Policy Exception : Major questions doctrine doesn't apply to national security Presidential vs. Agency : Direct presidential delegation deserves greater deference Challengers' Core Position Separation of Powers : Taxing and regulating are constitutionally distinct Textual Context : Other IEEPA verbs don't involve revenue raising Constitutional Avoidance : Export tax prohibition requires narrow reading Major Questions : $4 trillion impact requires explicit authorization Broader Constitutional Implications If Government Wins Sweeping presidential tariff authority during declared emergencies Expansion of executive power over traditionally congressional domain Potential model for other emergency economic powers If Challengers Win Reinforcement of congressional primacy over taxation Strengthening of major questions doctrine application to presidential action Constraint on emergency powers in economic regulation Key Legal Concepts Explained IEEPA (International Emergency Economic Powers Act) : 1977 law granting emergency economic authorities Major Questions Doctrine : Requirement for clear authorization for actions of vast significance Constitutional Avoidance : Interpreting statutes to avoid constitutional problems Separation of Powers : Constitutional division of authority between branches Foreign Policy Exception : Debate over whether normal limits apply to international contexts Timeline and Practical Impact September 19, 2025 : Opening briefs due September 23, 2025 : Amicus briefs due October 20, 2025 : Response briefs due October 30, 2025 : Reply briefs due November 2025 : Oral arguments (first week) Expected Decision : January 2026 or sooner