John Eastman, the chairman of the National Organization for Marriage (NOM), has warned of “devastating consequences for civil society” if gay and lesbian couples are allowed to marry.

Eastman appeared on PBS News Hour to discuss the marriage equality landscape following the fall of the Defense of Marriage Act (DOMA).

“The people that are opposed to redefining the very core institution of marriage are going to continue fighting,” Eastman said. “Justice Kennedy's opinion in the Defense of Marriage Act case rests heavily on the fact that states are the primary determiners of marriage policy in our country. … The statutes and the state constitutional provisions that define marriage as it has been through most of human history, as a man and a woman, don't need to be changed.”

Eastman credited African-American pastors with blocking a marriage bill in Illinois: “The African-American pastors rose up and they almost single-handedly stopped the redefinition of marriage bill from going through the Illinois legislature.”

“And what we're trying to do here is redefine the institution of marriage to say that fathers are optional. That's predictably going to have devastating consequences on civil society. And I think that's why this thing was pulled from the Illinois Legislature before it went forward. People are standing back now and starting to think about the collateral consequences that may flow from this radical redefinition of marriage.” (The video is embedded on this page. Visit our video library for more videos.)