Robert Gibbs, a top adviser for President Barack Obama's reelection campaign, said Sunday he was unsure whether Democrats will add support for gay marriage to the 2012 Democratic Party platform.

Last week, Freedom to Marry launched the Democrats: Say I Do campaign, which calls on the Democratic National Committee (DNC) to endorse marriage equality in this year's platform. The DNC will ratify the document during its national convention, which begins September 3 in Charlotte, North Carolina.

“I don't know the answer to that,” Gibbs, a former White House spokesman, told ABC This Week host Jake Tapper. “I haven't talked to the president at all recently on this issue.”

“I think we all look to and want to live in a world where, if you're applying for a job or doing anything, you're not judged on your sexual orientation. You shouldn't be. And I think living in a society where that doesn't happen is a society we all want to live.”

House Minority Leader Nancy Pelosi earlier said she supports the effort.