In recent decades, shifts in the nature of power within the international system have increased the importance of soft power dimensions alongside hard power tools. This research, employing a descriptive-analytical approach and focusing on the concept of soft power as the ability to attract and exert non-coercive influence, examines the factors contributing to the decline of U.S. soft power and the acceleration of this trend during Donald Trump’s presidency. Findings indicate that a combination of domestic and international factors has played a role in the erosion of U.S. soft power. Among domestic factors are the declining appeal of the American way of life, heightened social polarization, the weakening of democratic principles, restrictions on civil liberties, and diminished trust in the media. On the international front, factors such as unilateralism, withdrawal from international agreements and institutions, reduced global acceptance, and aggressive behaviors have been influential. The Trump era, marked by the promotion of divisive rhetoric, unilateral approaches, populist policies, and anti-immigration measures, exacerbated and deepened this decline. As a result, the United States’ international standing weakened, and its capacity for influence and coalition-building became constrained. Ultimately, the revival of U.S. soft power depends on domestic reforms, a return to multilateralism, and constructive management of competition with emerging powers.