New research from the Social Change Lab offers key insights into the three main factors that lead to protest wins. First, nonviolent tactics are more likely to lead to successful outcomes relative to violent outcomes—experts consulted were reasonably confident that violence is a less effective approach and the literature supported their view. Second, size of protests is really key, with better-attended protests meaning a higher chance of policy changes and other desired outcomes. Third, favorable sociopolitical context like pre-existing public opinion, the response of the media, whether there are elites (like politicians or celebrities) who support the cause, as well as blind luck are helpful for facilitating successful political outcomes.