Pittsburgh Mayor Luke Ravenstahl has joined Mayors for the Freedom to Marry.

Ravenstahl's pledge to support equal marriage rights for gay and lesbian couples comes two months after he said he would not be joining the group.

Ravenstahl's spokesperson, Joanna Doven, told a reporter in April that he does not support gay marriage and would not join the group.

“My position actually changed well before that,” Ravenstahl, 32, told the Pittsburgh Post-Gazette.

The mayor said Doven was referencing his last public statement on the issue, which he made during a 2009 debate.

Mayors for the Freedom to Marry has grown to include more than 200 mayors from across the country from its original 80 members at its January launch.

“My mind has changed. My heart has changed. I thought it was important to express that,” Ravenstahl said, noting that he reversed course after speaking with gay friends and staff and gay rights activists.

He said he was also influenced by President Barack Obama's recent public endorsement of marriage equality.

Members of Mayors for the Freedom to Marry pledge to lobby state lawmakers to approve legislation legalizing gay nuptials and to call on Congressional representatives to repeal the Defense of Marriage Act (DOMA), which bars federal agencies from recognizing the legal marriages of gay couples. The group is helmed by Los Angeles Mayor Antonio Villaraigosa.