Crushed gay marriage supporters in New York have begun campaigning against senators who voted against a gay marriage bill.

Less than a week after the gay marriage “betrayal” of state Senator Hiram Monserrate, a Democrat from Queens, Empire State Pride Agenda, the state's largest gay rights advocate, has endorsed a pro-gay marriage candidate for Monserrate's seat and has vowed to unseat anti-gay marriage politicians in the state.

In endorsing Assemblyman Jose Peralta in the 2010 Democratic Primary, the group noted his previous votes in support of gay marriage in the Assembly, which has approved the measure three times since 2007.

“Jose Peralta has demonstrated time and time again that he is a champion of equality and justice for all New Yorkers and has consistently represented the interests of his district in the New York State Assembly,” Alan Van Capelle, executive director of Empire State Pride Agenda, said in a statement released Tuesday. “His record on LGBT [Lesbian, Gay, Bisexual and Transgender] issues demonstrates that he does not duck-and-run when our bills come up for a vote.”

“He has stood up for us in the Assembly, and we will stand with him in his race for the state Senate,” he added.

After the gay marriage bill was put to rest on a 38 to 24 vote in the Senate Tuesday, openly gay Senator Tom Duane, the bill's sponsor, said eight of his colleagues, both Democrats and Republicans, had broken promises to him, including Monserrate. He said he felt “betrayed.”

But Van Capelle's voting roster might have read a bit differently. Soon after the Senate killed the bill for at least this session, Van Capelle issued a statement that said the silver lining was found in the public vote.

“Now we know where we stand, and where we need to concentrate our efforts in the future. … To those senators who do not yet see our families as deserving the same protections as other families in New York, our message is simple: We are more committed than ever to this fight. We will redouble our efforts in your district to ensure that our voice is heard. We know our cause is just. … If you cannot support us, we will find candidates for public office who do, and we will work through the democratic system to effect needed change,” he said.

Van Capelle repeated those sentiments in his endorsement Tuesday: “Over the next several months, the Pride Agenda will roll out endorsements of candidates who support equality and will challenge sitting members of the State Senate on both sides of the aisle whose record on equality is a stain on New York.”