While Michigan’s teachers’ unions have been active in mobilizing against these changes, the union response has not matched the intensity of Wisconsin’s or the recent success of Ohio’s. Indeed, not all teachers have been politically active or even supportive of their unions. Drawing on a series of semi-structured interviews with current and retired teachers from three school districts in south east Michigan, this paper examines how Governor Snyder’s recent political decisions have influenced the activism of individual teachers. Reflecting on the experiences of teachers who have become newly, or differently, active in politics yields insights about the factors that have driven their activism. Moreover, teachers’ experiences yield insights about the factors that are necessary for teachers’ unions to become more successful, not only in terms of mobilizing against policies that weaken public education in Michigan, but in mobilizing their members to become active in the struggle to maintain strong public schools and teachers' unions.