During the first hundred days of Donald Trump's presidency, he promoted several policies with high efficiency and a strong style, showcasing his 'America First' governing philosophy. In terms of the economy, he signed executive orders to boost American manufacturing, initiated tax reduction plans, and relaxed corporate regulations in an attempt to stimulate domestic demand and employment. At the same time, he reinforced border security and pushed for immigration restrictions and the construction of a wall along the U.S.-Mexico border, sparking intense debate both domestically and internationally. In foreign affairs, Trump displayed a tough stance, reassessing trade agreements and military deployments abroad, altering the traditional U.S. diplomatic strategy. While supporters believe his actions are decisive and reforms clear, critics argue that his policies are overly radical and have caused social divisions. His hundred-day performance is both controversial and marks the beginning of a completely new political style.