Social conservatives Mike Huckabee, Tony Perkins and Gary Bauer are threatening to leave the Republican Party if it softens its stance against gay marriage.

After the Republican National Committee (RNC) released a report which called for less vocal opposition to gay rights, several conservatives reacted angrily.

“The vast majority of the GOP base believes that marriage is a non-negotiable plank of the national platform,” said Perkins, president of the Christian conservative Family Research Council (FRC). “If the RNC abandons marriage, evangelicals will either sit the elections out completely, or move to create a third party. Either option puts Republicans on the path to a permanent minority.”

In an interview with Newsmax, Huckabee, a former GOP candidate for president, said the GOP risks alienating its base over the issue.

“They might. And if they do, they're going to lose a large part of their base because evangelicals will take a walk,” he said. “And it's not because there's an anti-homosexual mood, and nobody's homophobic that I know of, but many of us, and I would consider myself included, base our standards not on the latest Washington Post poll, but on an objective standard, not a subjective standard.”

Speaking Tuesday at the National Organization for Marriage's (NOM) rally on the Nation Mall calling on the Supreme Court to uphold two laws, Proposition 8 and the Defense of Marriage Act (DOMA), which exclude gay couples from marriage or from receiving the benefits of marriage, Bauer, who headed the FRC for a decade, threatened to leave the party if it “bailed” on the issue.

“I'm a Republican,” Bauer told the crowd. “Let me say to my party: If you bail out on this issue, I will leave the party and I will take as many people as I possibly can.” (The video is embedded on this page. Visit our video library for more videos.)