In the first hundred days of Donald Trump's presidency, he pushed multiple policies with high efficiency and a strong style, showcasing his 'America First' governing philosophy. Economically, he signed executive orders to promote American manufacturing, initiated tax reduction plans, and relaxed corporate regulations, attempting to boost domestic demand and employment. At the same time, he strengthened border security, promoted immigration restrictions, and pushed for the construction of a wall along the U.S.-Mexico border, sparking heated discussions both domestically and internationally. In foreign affairs, Trump displayed a tough stance, re-evaluating trade agreements and military deployments abroad, altering America's traditional 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.