House Minority Leader Nancy Pelosi has said she supports an effort to add marriage equality to the 2012 Democratic Party platform, gay weekly Metro Weekly reported.

On Monday, 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.

“Leader Pelosi supports this language,” Pelosi spokesman Drew Hammill told Metro Weekly.

“Freedom to Marry is proud to have Leader Pelosi joining our call to put the Democratic Party squarely on record in support for the freedom to marry as part of the national platform,” said Evan Wolfson, founder and president of Freedom to Marry. “A strong majority of Democrats and Independents support the freedom to marry, and standing up for all families is not just the right thing to do morally, it's also right to do politically.”

(Related: Evan Wolfson, Brian Brown debate gay marriage.)

Freedom to Marry's proposed language also includes support for repealing the Defense of Marriage Act (DOMA), the law that bars federal agencies from recognizing the legal marriages of gay couples, and opposition to constitutional amendments defining marriage as a heterosexual union.

The DNC's 2008 platform included support for repealing DOMA and called for equal protections without specifically mentioning the issue of marriage equality.

In contrast, the 2008 Republican Party platform included support for DOMA and placing a ban on marriages between people of the same gender in the U.S. Constitution.