(CNN) - Former President George W. Bush's daughter Barbara is appearing in a new web video in support of gay marriage.
The 20-second spot released Monday is sponsored by the Human Rights Campaign, a civil rights organization that works to achieve lesbian, gay, bisexual and transgender equality.
"I'm Barbara Bush and I'm a New Yorker for marriage equality," Bush says. "New York is about fairness and equality and everyone should have the right to marry the person that they love. Join us."
The video is part of a larger set of testimonials from New Yorkers including Robert F. Kennedy Jr., Whoopi Goldberg, New York City Mayor Michael Bloomberg, Kenneth Cole and Julianne Moore.
A statement from the group says, "Barbara Bush joins prominent Republicans like her mother Laura Bush as well as Dick Cheney and Ted Olson as supporters of marriage equality."
Bush's daughter, twin to Jenna Bush, is the latest Republican offspring to voice support for gay marriage, an issue her father campaigned against in his reelection bid. Meghan McCain, daughter of former GOP 2008 presidential nominee Sen. John McCain and Mary Cheney, daughter of former Vice President Dick Cheney have also been outspoken supporters of same-sex marriage. Mary Cheney is openly gay.
- CNN's Dana Bash and Gabriella Schwarz contributed to this report