Dow Jones sheds more than 800 points on Trump's latest tariff threat

Group 1 - Global markets are facing uncertainty due to trade policy changes, key corporate earnings, and economic data, particularly following the US Supreme Court's decision on tariffs [1] - President Trump announced an increase in global tariffs to 15% under Section 122 of the Trade Act, which allows temporary tariffs without Congressional approval, raising questions about exemptions and the impact on deficit projections [2] - Deutsche Bank analysts indicated that the timing and structure of tariff refunds could influence medium-term economic and fiscal outcomes [3] Group 2 - The uncertainty surrounding tariffs has led to mixed market reactions, with no significant selloff despite confusion over Trump's latest tariff announcement [3] - The situation may favor European equities over US markets in the near term and could contribute to a continued decline in the dollar [4] - US stocks opened lower, with the Dow Jones leading the decline, down 0.9%, and notable falls in companies like Salesforce, Nike, and American Express [5]