China urged the US to scrap unilateral US tariffs after the Supreme Court, in a 6-3 ruling, struck down many of President Donald Trump’s levies as beyond his authority under a 1977 emergency-powers law. Trump responded by unveiling a flat duty on imports worldwide, lifting the rate from 10% to 15% under a separate legal provision. China’s commerce ministry said it was conducting a comprehensive assessment of the decision and called on Washington to quickly end tariff measures