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Group 1 - Trump's team is preparing a backup plan in case the Supreme Court overturns his significant tariff authority, aiming to quickly implement new tariffs if necessary [1][3] - The U.S. Department of Commerce and the U.S. Trade Representative's Office are exploring options under Trade Law Sections 301 and 122, which grant the president unilateral tariff authority, although these alternatives may face legal challenges and have limitations [3][5] - Current average tariff rates on U.S. imports are approximately 14.4%, with over half stemming from tariffs imposed under the International Emergency Economic Powers Act (IEEPA) [5][6] Group 2 - Trump's recent executive order modifies tariffs on Brazilian goods, maintaining a 40% tariff on some products while eliminating additional tariffs on specific Brazilian agricultural products and aircraft parts [7][8] - The Brazilian Vice President noted that while some tariffs have been lifted, about 22% of Brazilian exports to the U.S. are still subject to high tariffs, indicating ongoing negotiations between the two countries [8]