Nora Caplan-Bricker observes that the 2012 Regnerus sociological study, which suggested that children of gay parents had relatively poor outcomes, is still being used to support conservative arguments against marriage equality despite the expert consensus that it was fundamentally flawed:
The denunciations of Regnerus’ work haven’t kept it from having influence. The study appeared in amicus briefs during the DOMA and Prop 8 cases that went before the Supreme Court in 2013. According to the Human Rights Campaign (HRC), which has tracked mentions of the study, it has come up in legislative debates in Hawaii, Illinois, Colorado, Maryland, Minnesota, Rhode Island, and the U.S. Congress. Before Regnerus was scheduled to testify in Michigan, his study was used as evidence in cases that went to court in Hawaii and New Mexico. Regnerus’ work has even influenced debates abroad—especially in Russia, where Yelena Mizulina, the chairwoman of the Duma’s committee on family, women and children, cited him to argue for a law banning same-sex adoption, which was enacted this February.