TAC - A Catholic Showdown Worth Watching by Patrick J. Deneen
Crisis Magazine - Catholicism and Republicanism: More Than Compatible by Timothy J. Gordon
tNP - Resurrecting Caelum et Terra by Jeremy Beer
The Imaginative Conservative - Philosopher of Love: David L. Schindler by Jeremy Beer
CatholicCulture.org - Archbishop Charles J. Chaput, O.F.M. Cap.
A City Upon a Hill: Augustine, John Winthrop and the Soul of the American Experiment Today
Religion, the State, and the Common Good
FTs - Orestes Brownson and the Truth About America by Peter Lawler
Christopher Blosser and I built the following website on this topic.
The Catholic Church and The Liberal Tradition
The origin and whole history of this blog is really focused on this exact topic. Refer to the classic posts on the right column.