Republican presidential candidate Herman Cain declared Saturday that he would "overturn" the Supreme Court if they legalized same sex marriage.

During a debate at the First Federated Church in Des Moines, Iowa, National Organization for Marriage (NOM) president Brian Brown asked the Republican candidates what they would do if the Supreme Court ruled that that Defense of Marriage Act (DOMA) -- a law that bans federal marriage equality -- was unconstitutional.

"If the Perry case or a DOMA case gets to the Supreme Court and the Supreme Court were to overturn DOMA or to find a -- quote -- unquote -- constitutional -- a U.S. Constitutional right to same sex marriage, if you were president, what would you do?" Brown asked.

"I would lead the charge to overturn the Supreme Court if they overturned DOMA," Cain insisted. "Whether that was new legislation coming out of the Congress like Rep. [Michele] Bachmann said. The United States Congress is supposed to pass laws so if they did overturn DOMA, that charge, I would lead to reverse that."