New York State Senator Mark Grisanti's decisive vote for a gay marriage law is the subject of a political attack.

Grisanti, a Buffalo-area Republican, has faced criticism from conservatives over his vote in favor of the state's historic marriage equality legislation.

However, the new ad, which is being circulated over e-mail, includes sexually provocative images from gay porn studio Corbin Fisher.

Under a back and white image depicting two young men having sex, a caption reads: “Make sure your Son [sic] says, 'Thank you, Mark Grisanti.'”

And besides another photo plucked from Corbin Fisher, the headlines: “How far will a politician go to get in your pant$? For his Gay Marriage vote, Mark Grisanti received over $75,000. Sometimes they're political whore$.” reported that the mailer, which states that it was paid for by the Committee to Save the Erie County Republican Party, is rumored to be the handiwork of Matthew Ricchiazzi, who made an unsuccessful bid for Buffalo mayor. However, Ricchiazzi has not commented on the mailer.

The mailer was first reported by Politico's Maggie Haberman.

Grisanti faces a tough primary challenge on Thursday.