美国总统权力边界之战！最高法院裁决在即 特朗普关税悬于一线

Core Points - The U.S. Supreme Court will hold a hearing on the Trump administration's "reciprocal tariffs" policy, which is considered one of the most significant cases in its history [1][2] - Trump has stated that if the Supreme Court forces him to abandon the tariff policy, it could lead the country to a "third world" level [1] - The tariffs imposed under the International Emergency Economic Powers Act (IEEPA) have resulted in U.S. businesses paying nearly $90 billion, accounting for over half of the total tariff revenue for the fiscal year 2025 [1] Summary by Sections Presidential Authority on Tariffs - The discussion revolves around the boundaries of presidential power to impose tariffs, with the IEEPA allowing the president to act in response to significant threats to national security, foreign policy, or the economy [2] - Trump argues that the substantial trade deficit constitutes an exceptional threat to U.S. national security and economy [2] Legal Challenges - The policy has faced strong opposition from businesses and several state governments, leading to lawsuits claiming the tariffs violate constitutional principles [3] - Plaintiffs argue that the IEEPA does not explicitly mention "tariffs" or "taxes," and that previous presidents have not used this law to impose tariffs [3] Court Rulings and Implications - Previous rulings by the U.S. International Trade Court (CIT) and the Federal Circuit Court deemed the tariffs illegal, stating that the IEEPA does not grant unlimited taxing authority [4] - Analysts suggest that the Supreme Court may issue a limited ruling, maintaining presidential power but requiring defined limits and standards for declaring a national emergency [5] Economic Impact - If the IEEPA tariffs are ruled invalid, the U.S. government may need to refund the collected tariffs, which could negatively impact the economy [5] - A potential ruling could lower the effective tariff rate by 10 percentage points, but it would not eliminate all losses from the trade war, with GDP still projected to be 0.7% lower than pre-election forecasts [5][6] Broader Legal Context - Regardless of the Supreme Court's decision, tariffs imposed under other laws, such as the Trade Expansion Act, remain unaffected [6] - Other legal avenues for imposing tariffs involve more complex procedures and time constraints, which could limit the president's ability to act swiftly [6]