The presidency said on Twitter that Nieto had "announced the signing of a reform initiative which includes the recognition of the right to get married without any form of discrimination."
Chief Justice Roy Moore previously made national headlines for refusing to take down a Ten Commandments monument.
A document published by the Vatican urges tolerance and understanding.
Only in the U.K. does the number of choices available to couples depend on sexual orientation.
Rebecca Steinfeld and Charles Keidan were told civil partnerships are for same-sex couples.
Members of the country's largest LGBT group applauded Clinton for her ongoing efforts to advance their cause.
The U.S. Episcopal Church will not be allowed to vote in Anglican affairs for three years.
Davis served six days in prison for declining to issue same-sex marriage licenses.
Roy Moore said a ban on Alabama same-sex marriage licenses remains in effect.
The U.S. senator from Texas was recorded in a meeting with donors in New York.
Davis refused to issue same-sex marriage licenses for religious reasons.
Religious schools believe Title IX conflicts with their beliefs on marriage, sexual orientation and abortion.
Richard Dowling and Cormac Gollogly are the first gay couple to marry in Ireland.
The judge earlier this week said heterosexual couples are more fit to raise children.
Davis said she will allow her deputies to issue licenses despite her stance against U.S. Supreme Court.
The county clerk was jailed for refusing to issue marriage licenses to same-sex couples.
As the PBS film celebrates its 25th anniversary, how does America look back at the Confederacy?
Magistrates are being brought in from a neighboring county to perform marriages after four refused to do so.
The move ends a months-long standoff between gay couples and a defiant clerk.
New polling by Pew Research Center shows Catholic attitudes on key social issues are increasingly liberal.