The anti-gay marriage group New Yorkers for Constitutional Freedoms on Monday filed a lawsuit seeking to overturn New York's law legalizing gay marriage in the state.

On Sunday, gay couples helped break a one-day marriage record in New York City as New York became the sixth – and most populous – state to allow gay and lesbian couples to marry.

According to the New York Daily News, the group claims that the law's adoption was illegal.

The New York Senate “violated the state's Open Meeting Law by closing off the Senate galleries and lobby; and by holding closed door meetings with Mayor [Michael] Bloomberg and others who backed the law,” the paper reported.

The group, which is helmed by Rev. Jason J. McGuire, also claims that Governor Andrew Cuomo illegally ignored a three-day waiting period and accuses proponents of the law, including Bloomberg, of bribing lawmakers for their votes.

“It is unfortunate that state senators chose to protect their personal interests, rather than the people they were elected to represent,” McGuire said in a statement. “Some of the players may have changed, but it looks like same old Albany game. It is time the curtain be pulled back and the disinfecting light of good government shine upon the Cuomo Administration and our State Legislature.”

A spokesman for Cuomo called the lawsuit “without merit.”

“The plaintiffs lack a basic understanding of the laws of the state of New York,” Cuomo spokesman Josh Vlasto said. “This suit is without merit.”

The legal challenge, which was filed in New York Supreme Court in Livingston County, names McGuire, New Yorkers for Constitutional Freedoms senior lobbyist Rev. Duane R. Motley, and Nathaniel S. Leiter, executive director of Torah Jews for Decency, as plaintiffs.