Introduction -- Same-sex marriage has become one of the defining social issues in contemporary U.S. politics. State court decisions finding in favor of same-sex relationship equality claims have been central to the issue's ascent from nowhere to near the top of the national political agenda. This book tells the story of the legal and cultural shift, its backlash, and how it has evolved over the past 15 years. There is a clear story of jurisprudential evolution with regards to same-sex marriage from Hawaii, through Vermont, Massachusetts, New Jersey, California, Connecticut, and, remarkably, Iowa in 2009. This book aids in a classroom examination of the legal, political, and social developments surrounding the issue of same-sex marriage in the United States. It provides an account of the litigation for same-sex marriage, and its successes and failures -- Conclusion.