 One such disagreement pits those who define power as getting someone else to do what you want them to do, that is, as an exercise of power-over others, against those who define it as an ability or a capacity to act, that is, as a power-to do something. The classic formulation of the former definition is offered by Max Weber, who defines power as “the probability that one actor within a social relationship will be in a position to carry out his own will despite resistance…” (1978, 53). Similarly, Robert Dahl offers what he calls an “intuitive idea of power” according to which “A has power over B to the extent that he can get B to do something that B would not otherwise do” (1957, 202–03). Dahl’s discussion of power sparked a vigorous debate that continued until the mid-1970s, but even his sharpest critics seemed to concede his definition of power as an exercise of power-over others (see Bachrach and Baratz 1962 and Lukes 1974). As Steven Lukes notes, Dahl’s one-dimensional view of power, Bachrach and Baratz’s two-dimensional view, and his own three-dimensional view are all variations of “the same underlying conception of power, according to which A exercises power over B when A affects B in a manner contrary to B’s interests” (1974, 30). Similarly, but from a very different theoretical background, Michel Foucault’s highly influential analysis implicitly presupposes that power is a kind of power-over; and he puts it, “if we speak of the structures or the mechanisms of power, it is only insofar as we suppose that certain persons exercise power over others” (1983, 217). Notice that there are two salient features of this definition of power: power is understood in terms of power-over relations, and it is defined in terms of its actual exercise.