Marriage-flipper Harold Ford Jr. received an icy reception Wednesday at a gay event in New York City, the AP reported.

Ford, who recently flipped in favor of gay marriage, walked into a den of gay lions when he addressed political group Stonewall Democrats.

Furious crashers shouted “liar” over Ford's explanation of how he evolved from backing civil unions for gay couples to supporting marriage.

“I falsely and wrongly believed that the two were equitable. I turned out to be wrong … I believe that the position that I hold now is the right position,” he said.

The thirty-nine-year-old politician's change of heart has been widely criticized by gay activists, who've pointed to Ford's record in Congress, where he twice voted in favor of the Federal Marriage Amendment, a bill that sought to define marriage as a heterosexual union in the U.S. Constitution.

“I know a snake oil salesman when I see one,” Empire State Pride Agenda Executive Director Alan Van Capelle said.

New York-based gay rights group The Power called on people to protest Ford's appearance. Nearly two-hundred-and-fifty people accepted the group's Facebook invitation. “Stop this anti-gay candidate from running for Senate in New York,” the group Crash Harold Ford, Jr.'s Address to Stonewall Democrats NYC says.

The wrangling over whether Ford is pandering to the gay community comes as he contemplates a challenge to New York Senator Kirsten Gillibrand for her Senate seat. HRC, the largest gay rights advocate, recently endorsed Senator Gillibrand's 2010 reelection bid.

Gillibrand has become an outspoken gay ally in the Senate on repeal of “don't ask, don't tell,” the 1993 law that prescribes discharge for gay troops who do not remain celibate or closeted.