At Thursday night’s Republican presidential debate, former Pennsylvania Senator Rick Santorum challenged Mitt Romney on the role he played in the destruction of marriage in Massachusetts while he was governor. Here was that exchange: After the debate, Romney issued a challenge that Santorum wouldn’t be able to find any respected legal authorities that would agree with his characterization of Romney’s culpability. Romney, as he has been on so many other things over the years, is wrong. When I contacted Mat Staver, Founder and Chairman of Liberty Counsel, for his response to the exchange, he sent me the following statement: “Rick...