Foundations of a Catholic Political Order

In the last few years more and more Catholics have begun taking seriously Pope Leo XIII's teaching on the relationship between Church and state. As a result, they have come to see the fundamental deficiencies of the liberalism that has dominated Western culture for over 200 years. But if liberalism, with its doctrine that limits the concerns of the political community to merely this-worldly matters, is erroneous, what is to be put in its place? And further, how would that alternative actual...