This quote from Peter Leithart (Between Babel and Beast, xiii) cuts deep:

Remember who you are, and to whom you belong. Remember that you belong to Jesus first and last; remember that the church, not America, is the body of Christ and the political hope of the future; remember that no matter how much it may have served the city of God, America is in itself part of the city of man; remember that the Eucharist is our sacrificial feast.