U.S. President Donald Trump said on Friday that the Supreme Court's ruling on tariffs is "deeply disappointing" and that he's "absolutely ashamed" of certain court justices for "not having the courage to do what's right for our country." He added that he "firmly disagrees" with the court's ruling today and promised to sign an executive order that will impose a 10 per cent global tariff "effective immediately." Trump said he will use Section 122 of the 1974 Trade Act to implement tariffs across the globe— however, that duty would only stay in place for 150 days, unless Congress votes to extend it.