My research focuses on understanding the dynamics of identities such as race, ethnicity, immigration, and partisanship in American politics and beyond. I aim to explore how these intergroup relationships influence political attitudes and behaviors in contemporary society. At the heart of my research are fundamental questions: How do identities shape political cooperation, conflict, and prejudice in American society and other contexts? My research agenda revolves around two central themes. The first theme investigates how intergroup cooperation emerges and how it can be nurtured, emphasizing its critical importance in shaping political attitudes and behaviors. These findings aim to inform practitioners on how to address societal issues such as racism, xenophobia, and polarization. The second theme explores the factors contributing to intergroup conflict and prejudice, providing insights into the challenges and barriers to achieving inclusive politics.