"Post-liberal" and "neo-integralist" Catholics are one of the most influential factions within the MAGA braintrust, and Patrick Deneen and Adrian Vermeule have become its leading exponents. This paper develops an immanent critique of their putatively neo-Aristotelian positions by drawing on the works of Alasdair MacIntyre, the leading neo-Aristotelian political theologian and philosopher of the late 20th century, and Martha Nussbaum, the leading neo-Aristotelian political philosopher in the United States.