Seemingly one of the most prominent issues that divide theorists about free will and moral responsibility concerns whether the ability to do otherwise is necessary for freedom and responsibility. I defend two claims in this paper. First, that this appearance is illusory: everyone thinks an ability to do otherwise is necessary for freedom and responsibility. The central issue is not whether the ability to do otherwise is necessary for freedom and responsibility but which abilities to do otherwise are necessary. Second, (...) I argue that we cannot determine which abilities are necessary until we have determined the nature and justification of moral responsibility. Thus, theorizing about moral responsibility ought to take pride of place in theorizing about free will. (shrink)