Kyle Handley, an economics professor at the University of California, San Diego, expects the Supreme Court may strike down newly imposed U.S. tariffs [1].
This assessment comes as the U.S. government increases trade pressures on international partners. If the highest court invalidates these measures, it would signal a significant check on executive power regarding trade policy and potentially stabilize volatile global markets.
Handley said the legal vulnerability and economic impact of the measures during an interview with ABC News on July 24, 2026 [1, 2]. He said that the legal basis for the tariffs could be challenged and eventually overturned by the judiciary [1].
The current trade climate is marked by aggressive postures toward North American neighbors. Specifically, the United States has threatened 50 percent tariffs on a variety of Canadian products [3]. Such steep increases in costs typically impact supply chains, and consumer pricing across multiple sectors.
Handley's analysis focuses on whether the executive branch exceeded its statutory authority in implementing these tariffs [1]. While the administration may use these tools for diplomatic leverage, the professor said that the legal framework supporting them may not hold up under strict judicial review [1, 2].
The prospect of a Supreme Court challenge creates a period of uncertainty for businesses. Companies importing goods from Canada and other affected regions must now weigh the immediate cost of tariffs against the possibility that the taxes will be declared illegal in the future [1, 3].
“The newly announced U.S. tariffs are likely to face a Supreme Court challenge.”
The potential for the Supreme Court to strike down these tariffs suggests a tension between executive trade strategy and constitutional authority. If the court rules against the tariffs, it may limit the ability of future administrations to use unilateral trade barriers as a primary tool for diplomatic negotiation, shifting the balance of power back toward legislative oversight of trade agreements.
