The National Organization for Marriage gleefully announced today that current GOP presidential frontrunner Newt Gingrich signed the anti-gay organizationโ€™s marriage pledge, according to a press release. So, fellow Republican presidential candidate Ron Paul remains the sole hold out.

Newt Gingrich Against Gay Marriage
GOP presidential frontrunner Newt Gingrich and third wife, Calista.

“Mr. Gingrich joins all the other major candidates who have made a similar commitment, save for one,โ€ NOM President Brian Brown said.

Brown made a veiled threat to the Paul campaign. NOM, he said, plans an intense public relations campaign, in order to โ€œinform Iowa votersโ€ who will stand with them.

The pledge requires candidates to support amending the U.S. Constitution, appoint U.S. Attorney General and Supreme Court justices whoโ€™ll adhere to the Constitutionโ€™s โ€œoriginal meaning,โ€ defend the U.S. Defense of Marriage Act, create a presidential religious liberty commission, and support legislation that would allow District of Columbia to vote on marriage.

Santorum: Gays to Blame for Declining ‘Straight’ Marriage Rates

Taking a page from the likes of Pat Robertson and Oral Robertsโ€”who blamed the GLBT community for natural disastersโ€”GOP presidential candidate Rick Santorum is blaming it for plummeting โ€œstraightโ€ marriage rates, OnTopMagazine reports.

Rick Santorum Against Gay Marriage
GOP presidential candidate Rick Santorum

A Pew Research report, released Wednesday, said marriage for adults over 18 has fallen to nearly 50 percentโ€”a 21-percent dip since 1960. Santorum shared his โ€œinsightโ€ and the Huffington Post story with nearly 50,000 Twitter followers Wednesday.

โ€œHere is 1 effect of changing definition of marriage,โ€ he tweeted.

Pew researcher Dโ€™Vera Cohn didnโ€™t blame gay marriage for the falling numbers. Cohn noted the prevalence of โ€œliving togetherโ€ or choosing to complete education, among other things.

Photo: Courtesy of Funripper.com; Chron.com