The Kingdom of God and the Kingdoms of man

I like this statement from Fr. Richard John Neuhaus:

Jesus Christ is Lord. That is the first and final assertion Christians make about all of reality, including politics. Believers now assert by faith what one day will be manifest to the sight of all: every earthly sovereignty is subordinate to the sovereignty of Jesus Christ. The Church is the bearer of that claim. Because the Church is pledged to the Kingdom proclaimed by Jesus, it must maintain a critical distance from all the kingdoms of the world, whether actual or proposed. Christians betray their Lord if, in theory or practice, they equate the Kingdom of God with any political, social, or economic order of this passing time. At best, such orders permit the proclamation of the Gospel of the Kingdom and approximate, in small part, the freedom, peace, and justice for which we hope.