In a swift response to a recent Supreme Court ruling that invalidated many of his global import tariffs, US President Donald Trump has announced a new 10% tariff set to take effect on 24 February. The decision comes after the court, in a 6-3 vote, determined that Trump had exceeded his authority, a move he characterised as “terrible” and expressed his disdain for the justices involved, whom he labelled “fools”. The implications of this ruling are profound, with businesses anticipating potential refunds on previously imposed tariffs, while the global trade environment faces increased uncertainty.
Supreme Court Decision Sparks Controversy
The Supreme Court’s ruling struck down tariffs that Trump had implemented last year, which initially targeted specific countries such as Mexico, Canada, and China, but eventually extended to numerous international partners. The court’s majority opinion, articulated by Chief Justice John Roberts, emphasised that Congress had not intended to grant the president the expansive tariff powers he had claimed.
“The authority to impose tariffs has been explicitly delegated by Congress in specific terms, subject to strict limitations,” Roberts stated, underscoring the legislative branch’s role in such critical economic decisions. The court’s decision represents a significant victory for those states and businesses that challenged the tariffs, potentially paving the way for billions of dollars in refunds.
Trump’s Retaliatory Measures
Reacting to the court’s decision, Trump expressed his profound disappointment, particularly towards the two Republican justices who sided against him. “I am absolutely ashamed of them,” he remarked, labelling their actions as unpatriotic. He indicated that the anticipated refunds for businesses would likely lead to prolonged legal battles, suggesting that the matter could linger in the courts for years to come.

In his announcement, Trump introduced a new tariff under a seldom-used provision of law known as Section 122, which allows for tariffs of up to 15% for a duration of 150 days before Congress must intervene. This new tariff is poised to affect a broad array of goods, though certain exemptions will apply, including various agricultural products and specific minerals. Notably, Canada and Mexico will maintain exemptions due to the United States-Mexico-Canada Agreement (USMCA).
Business Sector Reaction and Future Implications
The initial response from the business community has been cautiously optimistic. Following the Supreme Court’s ruling, Wall Street indices saw a rise, with the S&P 500 gaining approximately 0.7%. Business owners like Beth Benike, who runs a manufacturing company in Minnesota, expressed relief at the ruling, stating, “It feels like a thousand-pound weight has been lifted off my chest.” Similarly, Nik Holm, CEO of Terry Precision Cycling, described the court’s decision as a welcome reprieve, despite acknowledging the complexities ahead in restoring normal supply chain operations.
However, the path to securing refunds remains fraught with difficulties. Experts warn that the cost of litigation could deter smaller firms from pursuing refunds, with KPMG’s chief economist Diane Swonk advising caution. The ambiguity surrounding the refund process, as highlighted by dissenting opinions in the court, adds another layer of complexity to an already intricate situation.
The Broader Trade Landscape
As this scenario unfolds, major international stakeholders have remained relatively subdued in their reactions. The European Commission expressed a desire to analyse the ruling carefully, indicating that the global trade landscape may be on the brink of significant change.

The Trump administration is expected to explore additional legal avenues, potentially invoking other sections of trade law to impose further tariffs, particularly in areas deemed critical to national security or those perceived as engaging in unfair trade practices. Analysts predict an escalation of trade tensions, which could complicate relationships with key allies and trade partners.
Why it Matters
This development is not merely a domestic issue; it reverberates across global trade dynamics, influencing international markets and economic relationships. The imposition of new tariffs amidst judicial pushback raises questions about the balance of power between the executive and legislative branches in trade policy. As businesses navigate this shifting landscape, the decisions made today will have lasting repercussions on the US economy, international trade relations, and the global economic order. The ensuing legal battles and policy adjustments will shape the framework of American trade for years to come, reflecting the contentious nature of trade diplomacy in an increasingly interconnected world.