After the Supreme Court struck down IEEPA tariffs 6-3 on February 20, 2026, the Trump administration executed a two-phase legal strategy to reconstruct its tariff regime using alternative statutory authorities — revealing that the plan had been prepared as a contingency well before the Court ruled.
Phase one came within 24 hours. On February 21, Trump invoked Section 122 of the Trade Act of 1974 to impose a global 10-15 percent tariff, citing "large and serious" balance-of-payments deficits. Section 122 caps tariffs at 15 percent and limits their duration to 150 days — meaningful constraints absent from the IEEPA framework the Court had struck down. Treasury Secretary Scott Bessent defended the action as a lawful exercise of distinct statutory authority. Critics countered that the administration's transparent intent to maintain the same protectionist regime under a different legal label constituted bad-faith circumvention of judicial authority.
Phase two launched on March 11, when the administration announced Section 301 investigations targeting China, Mexico, the European Union, and more than a dozen other economies. Section 301 of the Trade Act of 1974 authorizes the president to impose tariffs on countries found to engage in unfair trade practices — a process with more procedural requirements but potentially more durable legal footing than either IEEPA or Section 122. Bessent publicly predicted that by August 2026, tariff rates would "effectively return to where they stood before the Supreme Court" ruling.
The combined strategy was architecturally precise: Section 122 provided immediate bridge tariffs to prevent any gap in trade barriers, while Section 301 investigations would generate the legal basis for permanent replacement tariffs before the 150-day Section 122 window expired. The speed and coordination of the pivot demonstrated that the administration viewed the Supreme Court's ruling not as a constitutional constraint to be respected but as a procedural obstacle to be circumvented — a pattern consistent with its approach to judicial checks across policy domains. Legal challenges to the Section 122 tariffs were filed within days, setting up a second round of tariff litigation, but the administration had already achieved its primary objective: uninterrupted trade barriers while building the legal infrastructure for a permanent alternative.