New Delhi, Feb. 22 -- US President Donald Trump said on Saturday he will increase the global 10 percent tariff he announced one day ago to 15 percent. Trump imposed global tariffs on countries in reaction to the US Supreme Court's ruling that his mechanism for applying tariffs was illegal.

"I, as President of the United States of America, will be, effective immediately, raising the 10% Worldwide Tariff on Countries, many of which have been 'ripping' the US off for decades, without retribution (until I came along!), to the fully allowed, and legally tested, 15% level," Trump said in a Truth social-media post on Saturday.

After the Supreme Court ruled 6-3 on Friday that Trump had acted unlawfully in using the International Emergency Econo...