WASHINGTON: US President Donald Trump said Saturday he was raising the worldwide tariffs on goods entering the United States from 10% to 15% “effective immediately,” a day after its Supreme Court largely struck down Trump’s sweeping duties. READ MORE: Trump furious after Supreme Court upends his global tariffs, imposes new 10% levy Trump said on his Truth Social platform that after a thorough review of Friday’s “extraordinarily anti-American decision” by the court to rein in his tariff programme, the administration was hiking the import levies “to the fully allowed, and legally tested, 15% level.” Trump responded with fury to Friday’s Supreme Court ruling that he lacked the power to unilaterally set tariffs on imports, denouncing individual justices as he vowed to continue a global trade war that has kept the world on edge for a year. Saying he was undeterred by what he repeatedly called a ridiculous ruling, Trump had announced an immediate new 10% tariff on imports from all countries, on top of any existing tariffs, and then issued a proclamation putting them into effect. The law allows him to impose a levy of up to 15% for 150 days, although it could face legal challenges.