However, Scott Chen asserted that he was a supporter of gay marriage.
A resolution allowing clergy members at Episcopal churches to marry LGBT couples is set to come into effect in three weeks.
Costa Rica will join numerous other Latin American nations and countries around the world that legalized same-sex unions.
Gay rights activists hope the landmark decision will help end discrimination against the LGBT community.
Same-sex marriage is punishable by 14 years' imprisonment in the conservative West African country.
The Church's stance undermines our ability to speak with authority on other moral issues.
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."
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.
Davis refused to issue same-sex marriage licenses for religious reasons.
New polling by Pew Research Center shows Catholic attitudes on key social issues are increasingly liberal.
From Kentucky to Tennessee and Texas, judges are being asked to rule on religious dissent.
"If you are a man and want to marry another man and we catch you, no one will ever set eyes on you again."
"My second wife Christine... she's put up with my crap for a lot of years. She deserves legitimacy."
Friday's decision sparked a party at the bar where the gay rights movement began.
In Iowa, an LGBT activist and a conservative leader become unlikely friends.
Advocates said couples in most counties were still unable to obtain licenses.
Two of the U.S. Supreme Court's conservative members, Justices Antonin Scalia and Clarence Thomas, would have blocked the lower court's ruling, the order said
On Monday, SCOTUS paved the way for same-sex marriages in 11 more states. What's next?