Does Ruth Bader Ginsburg support same-sex marriage?

Answer 1

The US Supreme Court justices don't talk publicly about social and political matters, particularly those that may come before the Court, so the only way to determine where a justice stands on the issues is to examine his or her voting record. Ginsburg's record of jurisprudence indicates she strongly favors same-sex domestic-partnerships and privacy rights; however, there is no way of know how she would vote on a case involving gay marriage.
As well her being a liberal points she would be in support of this and her granddaughter and i speculate she supports it. (her granddaughter is a good friend of mine)

Answer 2

Yes. Ruth Bader Ginsburg joined a majority opinion in which 5 out of 9 Supreme Court Justices ruled that same-sex couples have constitutional right to marry.