Why, in the face of ongoing criticism, do advocates of same-sex marriage continue to pursue litigation? Recently, Perry v. Schwarzenegger, a challenge to California’s ban on same-sex marriage, and Gill v. Office of Personnel Management, a lawsuit challenging section three of the federal Defense of Marriage Act, have created divisive debate. Leading scholarship and commentary on the litigation of decisions like Perry and Gill have been strongly critical, predicting that it will produce a backlash that will undermine the same-sex marriage cause. These studies all rely on a particular historical account of past same-sex marriage decisions and their effect on political debate. According to this account, the primary effect of same-sex marriage l...