Newt Gingrich, who signed NOM's Marriage Pledge when he ran for president, reiterates his support for marriage:

Reacting to Sen. Rob Portman’s sudden support of same-sex marriage, former GOP presidential candidate Newt Gingrich said Friday that he believes marriage is between a man and a woman “no matter what politicians decide.”

“Well, my stance hasn’t evolved. I observed in December that we’re faced with realities that are different than my personal beliefs,” Gingrich, a former House Speaker, said on CNN. “I believe as the Bible teaches, marriage is between a man and woman. I actually think that marriage is between a man and a woman no matter what politicians decide. I don’t think they have the power to change what is a religiously inspired definition.” (Politico)