ISTANBUL

US President Donald Trump on Saturday escalated his renewed tariff campaign by pledging to raise a previously announced 10% global tariff to 15%, even after the Supreme Court ruled against his previous tariff hikes.

"Based on a thorough, detailed, and complete review of the ridiculous, poorly written, and extraordinarily anti-American decision on Tariffs issued yesterday ... by the United States Supreme Court," the global tariff will be raised to 15% "effective immediately," Trump wrote on his Truth Social platform.

His announcement followed remarks on Friday in which he criticized the court’s “deeply disappointing” decision to invalidate the “emergency” tariffs he had implemented worldwide.