![Same-Sex Marriage Backed by Hillary Clinton Same-Sex Marriage Backed by Hillary Clinton](https://www.medindia.net/afp/images/US-vote-Democrats-Clinton-women-28264.jpg)
Clinton described marriage as "a fundamental building block of our society", adding it is "great joy and a great responsibility".
In her bid for the 2008 Democratic presidential nomination against Barack Obama, she, like him, expressed support only for civil unions but not same-sex marriage. Last year, Obama announced he was backing same-sex marriages.
Her video will add to speculation that Clinton plans to stand again for the White House.
Other potential candidates include vice-president Joe Biden, Maryland governor Martin O'Malley and New York governor Andrew Cuomo, who all favour same-sex marriages.
Clinton's comments come ahead of a supreme court hearing next week on the constitutionality of the Defense of Marriage Act (Doma) signed into law by Bill Clinton in 1996. The law defines marriage as between a man and and woman, and prevent married gay couples from receiving a range of federal benefits.
Polls show public opinion in the US has shifted to a majority in favour of same-sex marriage. Nine out of the 50 states have passed laws making it legal.
Source-ANI