Some studies have found that acknowledging one's stigmatized social identity in an evaluative context leads to more favorable evaluations, whereas others have found that stigma acknowledgment can increase negative evaluations. The present study examined one potential factor (i.e., evaluators' attitudes toward social groups to which acknowledgers belong) that may moderate the relation between stigma acknowledgment and evaluations, in the context of race and gender acknowledgment in the 2008 U.S. presidential election. Results indicated that acknowledgment of race, but not gender, led to more negative evaluations, particularly for high-prejudiced individuals. The findings highlight the importance of examining stigma acknowledgment effects from a Person × Situation perspective. Implications for advancing understanding of acknowledgment as a useful strategy in evaluative contexts are discussed.