US Supreme Court blocks Trump tariffs, Cambodia exporters see relief

PHNOM PENH, 21 February 2026 (KPT) – The US Supreme Court has struck down sweeping global tariffs imposed by President Donald Trump, delivering a setback to his trade agenda and injecting fresh uncertainty into global commerce.

In a 6–3 decision, the court ruled that Trump exceeded his authority when he imposed tariffs on nearly all US trading partners last year. Chief Justice John Roberts, writing for the majority, said the measures went beyond powers granted under existing trade laws.

Casey Barnett, president of the American Chamber of Commerce in Cambodia, said the ruling would immediately benefit Cambodian exporters.

“Tariffs on all exports from Cambodia to the United States have been reduced by 19%. This is a major boost to Cambodia’s manufacturing sector and investment,” he noted.

Hours later, Trump responded defiantly, announcing a new 10% global tariff to take effect Tuesday under Section 122 of US trade law, a provision allowing temporary levies of up to 15% for 150 days.

He lashed out at the justices, calling them “fools and lap dogs,” and accused two of his own appointees of disloyalty.

The abrupt policy shift rattled financial markets and raised questions over trade deals struck with partners including the UK, India and the European Union.

US officials said those countries would now face the new tariff despite earlier concessions. Economists warn the move could heighten uncertainty and provoke retaliation from major trading partners.