美新一届政府执政近一年，给世界带来了什么？

Core Viewpoint - The new U.S. government has intensified political polarization and governance disorder, prioritizing "America First" over international norms, leading to global instability and uncertainty [1] Foreign Policy - The U.S. government has adopted extreme unilateralism and alliance restructuring, withdrawing from international agreements like the Paris Accord and the WHO, resulting in fragmented global governance [2][3] - The implementation of "Monroe Doctrine 2.0" or "Tangro Doctrine" involves military interventions in Latin America while attempting to undermine China-Russia cooperation [2][4] - The U.S. has emphasized transactional relationships with allies, demanding greater defense responsibilities and linking economic and security issues [3][11] Economic Policy - The U.S. continues to enforce hegemonic interventions and tariffs, causing supply chain disruptions and increased costs for consumers, which are expected to lead to a $3.3 trillion deficit over the next decade [2][3] - The government's focus on "de-globalization" and "friend-shoring" has resulted in localized supply chain paralysis and rising logistics costs [2][3] Military Strategy - The U.S. military strategy shows a trend of strategic contraction, reallocating resources from the Middle East and Europe to focus on the Western Hemisphere and the Indo-Pacific [2][3] - The new national security strategy prioritizes the Western Hemisphere, indicating a shift in military focus and potential reallocation of U.S. military resources [3][12] Domestic Policy - The government has implemented drastic administrative reforms, including significant layoffs and budget cuts, leading to a historic government shutdown and a decline in public trust [7][8] - Immigration policies have become more extreme, resulting in the largest-scale deportations in U.S. history, which may negatively impact GDP by 1-4.9% due to labor shortages [7][8] - The administration's approach to education and social issues has exacerbated divisions between "red" and "blue" states, leading to increased cultural conflicts [7][9] Overall Governance Characteristics - The governance style is characterized as "bulldozer-style," marked by extreme unilateralism, strong administrative control, economic bullying, strategic contraction, and populist governance [11][16] - The U.S. government acknowledges the end of the unipolar era and is shifting towards a new isolationist realism, focusing on protecting its core interests while viewing China as a primary competitor [11][16]