In a sit-down interview with ABC’s Robin Roberts, Obama completed what has been a markedly long and oft-mocked evolution on the matter. “I’ve always been adamant that gay and lesbian Americans should be treated fairly and equally,” Obama told Roberts, in an interview that will air in full on ABC’s “Good Morning America” Thursday. The statement constitutes an act of political bravery on the president’s behalf, as well as a major victory for the gay rights community, which has been pushing him to declare his support for marriage equality for several years. With the issue back in the news this week, the pressure intensified. On Sunday, Vice President Joseph Biden told NBC’s “Meet The Press” that he was personally comfortable with same-sex marriage, which was followed the next day by Education Secretary Arne Duncan saying the same.