The US Supreme Court has ruled that President Donald Trump's tariff wall is illegal, delivering a significant blow to the former president's trade policies. This decision was reached by a majority of six justices, with three dissenting. Trump's legal counsel, John Sauer, strongly warned during the proceedings that declaring the tariff wall illegal could have devastating effects on the US economy and national security.

The tariff wall was initially designed to reduce the trade deficit and improve the national economy, and it had been used as leverage in negotiations with various countries, including threats of additional tariffs against Norway. With the Supreme Court's ruling, Trump may seek alternative methods to impose tariffs, emphasizing his view that the growing trade deficit represents an economic crisis. Critics, including the plaintiffs in the case, argue that he overstepped his authority and unlawfully usurped power from Congress.

As Trump assesses his next steps in the wake of this ruling, the implications for US trade relations and economic policy could be far-reaching. The legal defeat may galvanize opposition to his tariff-like measures and further complicate his attempts to reshape domestic and international economic relationships. The situation underscores the ongoing contentiousness of economic policy in the US and highlights the checks and balances inherent in the American political system, particularly regarding the powers of the executive branch.