U.S. Supreme Court to Hear Trump Tariff Cases, Arguments Set for November 2025

Ecommerce Innovation Alliance

September 10, 2025

U.S. Supreme Court has granted petitions for writs of certiorari in cases challenging the tariffs imposed by President Trump

The U.S. Supreme Court has granted petitions for writs of certiorari in cases challenging the tariffs imposed by President Trump. This development directly impacts ecommerce businesses navigating the current trade landscape.

A writ of certiorari is a formal petition filed with the Supreme Court, requesting that it review a decision made by a lower court. When the Supreme Court grants a writ of certiorari, it indicates the Court’s agreement to hear and subsequently rule on the case.

On September 9, 2025, the Supreme Court granted certiorari for Trump, President of U.S., et al. v. V.O.S. Selections, Inc., et al. (No. 25-250) and Learning Resources, Inc., et al. v. Trump, President of U.S., et al. (No. 24-1287). These cases have been consolidated, and one hour of oral argument has been allotted. An expedited briefing schedule is in place, with arguments set for the first week of the November 2025 argument session.

The central legal question before the Court is whether the International Emergency Economic Powers Act (IEEPA) authorizes the tariffs imposed by President Trump. 

Tariffs Under Review:

  1. Contraband Drug Tariffs: These tariffs, with duties ranging from 10% to 25%, were imposed on imports from Canada, Mexico, and the People’s Republic of China (PRC). They were initiated under various national emergency declarations, including Proclamation 10,886 and Executive Orders 14,157, 14,193, 14,194, 14,195, and 14,257, as amended.
  2. Reciprocal Tariffs: These tariffs initially imposed a 10% duty on most goods from nearly every major trading partner, with potential for higher country-specific duties. They were implemented to address enormous, persistent annual U.S. goods trade deficits and their perceived consequences, such as a hollowed out domestic manufacturing and defense-industrial base and vulnerable domestic supply chains.

The Federal Circuit had previously ruled these tariffs “unlawful” but stayed its mandate, meaning the tariffs currently remain in force. This creates a “pall of uncertainty” for ecommerce businesses, directly impacting strategic planning and operations. Businesses have reported tangible challenges, including difficulties with sourcing and pricing, reduced cash flow, delayed shipments, and paused production due to the unpredictability and imposition of these tariffs. For example, one named plaintiff, Terry Precision Cycling LLC, alleges having already paid $25,000 in unplanned tariffs this year and projects approximately $250,000 in costs by the end of 2025.  The government’s own estimates indicate the reciprocal tariffs alone could generate between $2.3 trillion and $3.3 trillion over the budget window, highlighting the vast economic and political significance of this issue for the broader US economy and, consequently, for ecommerce enterprises.

The Supreme Court’s decision to take up these cases underscores the “surpassing importance” of clarifying the President’s tariff authority under IEEPA.

The EIA has been actively engaged on this issue. For further context and previous analyses, we encourage members to review our past blog postsJoin the EIA today to help strengthen and shape policies that affect all ecommerce businesses. Together, we can continue to create the future of ecommerce. Subscribe to EIA email updates to stay informed on key developments and their impact on your business.

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