Informed by social resources theory, we provide an explanation for how political skill enables employees' access to social resources, notably expressive network resources and developmental feedback granted by supervisors, thereby enhancing their potential for career growth. Employees can further leverage the attained resources to maximize their chances for career growth by exercising ingratiation toward their supervisors. Data from 399 independently matched subordinate-supervisor dyads in Japan partially support our predictions. While supervisor-focused expressive network resources and supervisor developmental feedback account for mediating mechanisms through which political skill could predict career growth potential, the use of ingratiation to further leverage these social resources is rather deemed insignificant. Theoretical and practical implications of the findings are discussed.