How Bill Clinton changed his mind on marriage, DOMA

Former President Bill Clinton has indicated to friends that his decision to sign the Defense of Marriage Act has haunted him ever since, this article says. Though some activists are still leery of his outward change of heart, former aides and friends talk about how Clinton has come to embrace marriage rights for same-sex couples and reject DOMA as unconstitutional. 

"We created a safe place where he could change his mind," said David Mixner, a political strategist.