I recently had occasion to revisit a blog post I wrote in April 2020 about the evaluation of separation of powers in Catholic social teaching: Centessimus Annus ¶ 44 and the U.S. Constitution. In it, I presented a multiple-choice question:
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Four key commitments of the Constitution of the United States of America are (1) popular sovereignty, (2) writtenness, (3) federalism, and (4) separation of powers. Which, if any, of these key commitments of American constitutionalism does Catholic Social Teaching endorse as an essential aspect of a sound theory of the State?
A. Popular Sovereignty
B. Writtenness
C. Federalism
D. Separation of Powers
E. All four.
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The point of the question, then, was to introduce the endorsement of separation of powers by Centessimus Annus. My purpose, now, is to suggest that what I called the “four key commitments of the Constitution of the United States of America” might be understood by analogy to the four marks of the Church. This can only be an analogy because there are important differences with the similarities. But the idea of “marks of the Church” is that these “four characteristics, inseparably linked with each other, indicate essential features of the Church and her mission.” CCC no. 811. By analogy, we might say that the four characteristics of popular sovereignty, writtenness, federalism, and separation of powers are four characteristics that indicate essential features of the government of the United States under the Constitution.
A great dissimilarity in this analogy is that the Church has a divine source that the government of the United States under the Constitution does not have. “The Church does not possess [the characteristics of one, holy, catholic, and apostolic] of herself; it is Christ who, through the Holy Spirit, makes his Church one, holy, catholic, and apostolic, and it is he who calls her to realize each of these qualities.” CCC no. 811. Related to this, “[o]nly faith can recognize that the Church possess these properties from her divine source.” CCC no. 812. At the same time, there lies a similarity in that both the marks of the Church and the marks of the U.S. government under the Constitution have “historical manifestations [that] are signs that also speak clearly to human reason.” CCC no. 812.