David Blankenhorn, a traditional-marriage advocate and star witness in the Proposition 8 trial in California in 2010, shocked his allies with an Op-Ed article in The New York Times last June announcing that he was quitting the fight against same-sex marriage. “Instead of fighting gay marriage,” Mr. Blankenhorn wrote, “I’d like to help build new coalitions bringing together gays who want to strengthen marriage with straight people who want to do the same.”

Read more in The New York Times: http://www.nytimes.com/2013/01/30/us/in-shift-blankenhorn-forges-a-pro-marriage-coalition-for-all.html?ref=us