Both the Democratic and Republican vice presidential candidates are Catholics, yet they have very different ideas about the kinds of social policies that can be based on Catholic Social principles. Some would say that Joe Biden emphasizes solidarity over subsidiarity, while Paul Ryan tends to talk more about subsidiarity. Here's a video in which Fr. Robert Barron evaluates and comments on Republican VP candidate Paul Ryan's grasp of Catholic social teaching, and the proper balance between the key principles of solidarity and subsidiarity.