In a decisive response to a recent Supreme Court ruling that struck down his previous tariffs, US President Donald Trump has announced a new 10% global tariff, branding the court’s decision as “terrible” and deriding the justices as “fools”. This move follows the court’s 6-3 verdict, which determined that Trump had exceeded his authority under existing trade laws. The ruling has significant implications for both domestic businesses and international trade relations.
Supreme Court Strikes Down Previous Tariffs
The Supreme Court’s ruling, delivered on Friday, invalidated a series of tariffs that the Trump administration had imposed on imports from numerous countries, initially targeting Mexico, Canada, and China. The court’s decision represents a substantial victory for the coalition of states and businesses that challenged the tariffs, potentially paving the way for billions of dollars in refunds.
The justices ruled that the president’s use of the International Emergency Economic Powers Act (IEEPA) to impose these tariffs was inappropriate, as the law does not explicitly grant such sweeping powers. Chief Justice John Roberts articulated that Congress has historically delegated tariff authority in precise terms, implying that the president cannot unilaterally impose tariffs without clear legislative backing.
Trump’s New Tariff Strategy
In light of the court’s ruling, Trump swiftly unveiled his new tariff plan during a press briefing at the White House. He expressed confidence in his administration’s ability to pursue alternative legal avenues, stating, “We have alternatives – great alternatives, and we’ll be a lot stronger for it.” The new 10% tariff will come into effect on February 24, employing a rarely utilised provision under Section 122, which allows for tariffs up to 15% for a limited duration of 150 days, pending Congressional review.

This new tariff structure will feature exemptions for specific goods, including certain minerals, agricultural products, and pharmaceuticals. Notably, Canada and Mexico will remain exempt due to their commitments under the US-Mexico-Canada Agreement (USMCA). However, countries with existing trade agreements, such as the UK, India, and the EU, will be subject to the new tariff rates, raising concerns about the stability of these international relationships.
Business Community Reaction
While the announcement has generated mixed reactions, many in the business community have expressed relief following the Supreme Court ruling. Shares on Wall Street experienced a modest uptick, with the S&P 500 index rising approximately 0.7%. Entrepreneurs like Beth Benike, who runs a manufacturing firm in Minnesota, conveyed a sense of liberation from the previous tariffs, stating, “I feel… like a thousand-pound weight has been lifted off my chest.”
Despite the optimism, experts caution that the anticipated refunds from the now invalidated tariffs may not materialise smoothly. The complexity of litigation and the potential for drawn-out legal battles could hinder smaller businesses from recovering their funds. Diane Swonk, chief economist at KPMG US, warned that the costs associated with legal proceedings might deter many firms from pursuing refunds.
The Path Ahead
The Trump administration is expected to explore additional legal frameworks, such as Sections 232 and 301, which address national security and unfair trade practices, respectively. Analysts predict that these measures will further complicate the already intricate trade landscape.

Geoffrey Gertz, a senior fellow at the Center for a New American Security, noted that “things have only gotten more complicated and more messy today”, reflecting the uncertain future of US trade policy. Meanwhile, international reactions to Trump’s latest tariff announcement have been relatively subdued, with European officials stating they are carefully analysing the implications of the Supreme Court ruling.
Why it Matters
The reinstatement of a global tariff amidst significant judicial pushback underscores the contentious nature of trade policy in the United States. As businesses grapple with the ramifications of the Supreme Court’s decision, the new tariff structure threatens to add further layers of complexity to international trade relations, potentially reshaping the economic landscape for years to come. The situation remains fluid, with the potential for ongoing legal disputes and shifting political dynamics to influence future trade agreements.