特朗普对华失去重要筹码，日本却被坑惨，高市将登门送上大礼

Core Viewpoint - The recent U.S. Supreme Court ruling has significantly impacted U.S. trade policy, particularly undermining the legal basis for the Trump administration's tariffs against China, which were deemed unlawful [1][3]. Group 1: U.S. Trade Policy Changes - The Supreme Court's decision restricts the President's ability to impose tariffs without Congressional approval, marking a critical institutional constraint on Trump's trade practices [3]. - Following the ruling, the Trump administration quickly reinstated a global uniform tariff of 15% under the Trade Act of 1974, indicating a shift in strategy despite the legal setback [1][10]. Group 2: China's Response and Position - China has demonstrated resilience and a mature response to U.S. tariff threats, maintaining a principle of rationality and countermeasures to protect its national interests [5][6]. - The Supreme Court ruling has alleviated the tariff pressure on China, allowing it to transition from a reactive to a proactive stance in the U.S.-China trade negotiations [8]. Group 3: Impact on Global Trade Dynamics - The new tariff measures have uneven impacts on global economies, with the EU managing to mitigate losses through retaliatory tariffs and legal actions, while Japan faces significant economic damage due to its previous concessions to the U.S. [10]. - Japan's reliance on the U.S. has been highlighted as a critical vulnerability, as the recent tariff changes have rendered its prior concessions ineffective, leading to substantial economic repercussions [10]. Group 4: Broader Implications for Global Trade - The U.S. trade policy reflects a broader instability in the post-Cold War global trade order, with unilateral actions undermining multilateral trade systems and global supply chains [10][11]. - China's commitment to multilateralism and free trade is positioned as a counter to U.S. unilateralism, emphasizing the importance of strategic autonomy and fair cooperation in the evolving international landscape [11].