Perry and Windsor
A 2010 federal trial in California, Perry v. Schwarzenegger, ruled that Proposition 8 was unconstitutional and showed that the expert witnesses brought in to testify against marriage equality were either unconvincing or entirely lacking in credibility. Perry was a triumph for the social science consensus supporting gay rights. Moving up the federal court system at the same time was Edith Windsor’s challenge to DOMA, which prevented the federal government from recognizing Windsor’s marriage to Thea Spyer, and therefore prevented Windsor from enjoying the estate tax benefits that married heterosexual couples enjoy. The 2013 U.S. v. Windsor decision overturned a key provision of DOMA, the federal ban on recognizing same-sex marriages and opened the door to legal challenges to every state ban on same-sex marriage.