Gov. Haley Barbour issued a warning to social conservatives in choosing their Republican nominee for 2012: “Purity is the enemy of victory.” “Remember purity in politics, purity is the enemy of victory,” Barbour said. “We can’t start out with the idea out as the Faith & Freedom Coalition that our candidate’s got to agree with me on every single thing. We cannot expect our candidate to be pure. Winning is about unity. Winning is about us sticking together to achieve the main thing.” “Conservatives, religious people, small government people, we are not going to have purity. We’re not going to...