Book excerpt: The Supreme Court ruling in Obergefell v. Hodges (2015) ended a 20-year political battle over same-sex marriage in the USA. The ruling in favor of a constitutional right for gays and lesbians to marry reflected growing social acceptance and political rights for gays and lesbians. At the same time, America remains a deeply religious country and many religious organizations have long opposed same-sex marriage. How do religious organizations interpret, process, and respond to shifting attitudes and public policy toward the LGBT community? Examining how religious groups in America have responded theologically and politically to the legalization of same-sex marriage, the book provides case studies from across the American religious spectrum to explore how each group understands same-sex marriage and has reacted theologically, socially, and politically to its new standing as a constitutional right. Each case study focuses on formal statements made by church leaders, incorporates original data gathered from interviews with regional and local religious authorities, and analyzes existing polling data of adherents at large. Offering a comprehensive examination of religious responses to marriage equality in the USA, this book will interest scholars and students in the fields of religion and politics, civil rights, social change, and public policy.