Core Viewpoint - The U.S. Supreme Court is questioning the legality of President Trump's tariff policies, which could lead to significant setbacks for him, especially following a recent trade agreement with China [1][5]. Group 1: Legal Authority and Constitutional Concerns - The core debate revolves around the president's power to impose taxes, as the U.S. Constitution grants this authority to Congress, not the president [3]. - Supreme Court justices are skeptical of the Trump administration's invocation of the International Emergency Economic Powers Act, suggesting it was intended to limit presidential power rather than expand it [3][5]. - Justices pointed out that the tariffs effectively act as a tax on American citizens, raising constitutional concerns about the delegation of trade responsibilities to the president [3][5]. Group 2: Potential Consequences of a Supreme Court Ruling - If Trump loses the case, he may have to refund up to $140 billion in tariffs to U.S. businesses, which could severely threaten his presidency [5]. - The Trump administration maintains that its actions are legal, but justices question whether allowing the president to impose tariffs under the guise of national security undermines Congress's role in trade [5]. - Regardless of the Supreme Court's decision, Treasury Secretary Yellen has indicated that the government will seek alternative methods to maintain tariffs, suggesting that U.S. businesses have already incurred significant costs due to Trump's tariff policies [6]. Group 3: Broader Implications - The Supreme Court's ruling, expected by the end of the year, is anticipated to redefine the boundaries of power within the U.S. government and have lasting effects on global trade dynamics [6].