Recent scholarship has discovered significant racial/ethnic group variation in response to political threats such as immigration and terrorism. Surprisingly, minority groups often simultaneously perceive themselves to be at greater risk from such threats and yet still prefer more open immigration policies and civil liberties protections. We suggest a group‐level empathy process may explain this puzzle: Due to their higher levels of empathy for other disadvantaged groups, many minority group members support protections for others even when their own interests are threatened. Little is known, however, about the unique properties of group empathy or its role in policy opinion formation. In this study, we examine the reliability and validity of our new measure of group empathy, the Group Empathy Index (GEI), demonstrating that it is distinct from other social and political predispositions such as ethnocentrism, social dominance orientation, authoritarianism, ideology, and partisanship. We then propose a theory about the development of group empathy in reaction to life experiences based on one's race/ethnicity, gender, age, and education. Finally, we examine the power of group empathy to predict policy attitudes and political behavior.