http://www.slate.com/articles/news_and_politics/jurisprudence/2015/07/first_amendment_defense_act_congress_would_protect_discrimination_against.html

Republicans in Congress had many ways to demonstrate how much they disagreed with the Supreme Court’s decision in Obergefell v. Hodges, which declared a constitutional right to same-sex marriage. They could have passed a resolution condemning the ruling, whipped up votes for a constitutional amendment to overturn it, or encouraged states to ignore it. Instead, Republicans opted for the weirdest option: They introduced a bizarre bill that would legalize discrimination against not just gay couples—but also single mothers.