Based on co-authored research, this talk shows how historical framing--drawing parallels between past and present events or actors--can mobilize protesters and keep them politically engaged in the face of unpopular policies and violent repression. Nicaraguan and Chilean activists and citizens saw their presidents and security forces as repeating reviled dictatorships’ behavior, making clear the importance of protesting against them. Using a survey experiment, we also demonstrate that historical framing can remain useful after protests have subsided, increasing Chilean respondents’ support for police reform a year later, though frames must be carefully targeted to be most effective. Series: "GRIT Talks" [Public Affairs] [Show ID: 39333]