Drawn from a larger study, the authors examine how one preservice teacher negotiated positions of power with students in ways that enabled and prohibited him from enacting his preferred teacher identities. Specifically, this study illustrates how video analysis opened opportunities for this preservice teacher to reflect on the relationship between positions of power and identity enactment during moment-to-moment classroom interactions. The analysis challenged the preservice teacher to study how he positioned himself as a teacher, how students positioned him, and how he positioned students during classroom interactions.