History
Integralism is less a fixed doctrine than a Catholic intellectual reflex that wakes up whenever the post-1789 liberal order looks vulnerable and dozes off again once it stabilizes. It has woken three times: in the post-Revolution reaction of the early nineteenth century, in the late-nineteenth-century papal-Magisterium response to liberal-democratic state formation, and in the post-2010 Anglo-American revival. The analytical core travels unchanged each time (politics sits under revealed truth, and liberal procedure has no competence at theological questions), but it lands in different conditions and produces different results. The founding nineteenth-century figures built the tradition's analytical machinery as a reaction to a Europe whose liberal-democratic institutions were steadily shrinking Catholic political influence: Joseph de Maistre, Louis de Bonald, Juan Donoso Cortés, and, in the English context, Cardinal Henry Edward Manning. Maistre and Donoso Cortés also anchor traditional conservatism more broadly. Integralism is roughly what that tradition becomes once it swaps the secular Burkean vocabulary for an explicitly Catholic political-theological one [see the Traditional Conservatism dossier section on the Maistre-Donoso Cortés lineage]. The animating feeling was loss, and loss has colored the project ever since.
Most of the heavy intellectual work came from the late-nineteenth-century papal Magisterium. Pope Pius IX's Syllabus of Errors (1864) catalogued and rejected a long list of secular-liberal political commitments. Pope Leo XIII's Immortale Dei (1885) then laid down the canonical Catholic framework for relating church to state. That same encyclical ecosystem, above all Rerum Novarum (1891) and the later Quadragesimo Anno (1931), turns out to be load-bearing for distributism too, which is the economic program integralism tends to reach for once it gets specific about who should own what [see the Distributism dossier section on the shared papal-encyclical foundations]. Pope Pius X's Pascendi Dominici Gregis (1907) set out the anti-modernist line. From there the commitments fanned out under different national flags: Charles Maurras's Action Française in early-twentieth-century France, the Iberian Carlist tradition, an assortment of Latin American Catholic-traditionalist movements, and the wider European Catholic-traditionalist milieu.
In the 1920s and 1930s integralism finally took political form, and the company it kept then still dogs the tradition. The 1929 Lateran Treaty between the Vatican and Mussolini's Italy set up institutional church-state cooperation inside a Fascist regime, and that template was close at hand when Franco's 1937 Decree of Unification folded the Carlists into the FET y de las JONS, carrying Catholic-traditionalist integralist content into a fascist shell [see the Falangism dossier section on the Carlist absorption and the Lateran Treaty parallel]. Franco's post-Civil-War state then wrote Catholic political infrastructure into Spanish institutions, and several Latin American movements built parallel apparatus after 1930. This overlap with authoritarian-Catholic regimes is the record integralism cannot shake, and the contemporary revival has had to argue against it rather than tiptoe around it.
Vatican II (1962-1965) redrew the institutional landscape. Its embrace of religious liberty, ecumenical dialogue, and engagement with modern liberal-democratic life pushed orthodox integralism to the margins of mainstream Catholic political theology, and the tradition has been split ever since. On one side sit the Catholic-traditionalist communities that reject the Council's liberal-political turn outright, the Society of Saint Pius X most prominently. On the other sit currents that keep the integralist analysis while operating inside post-Vatican-II Catholic institutions. The gap between them has not closed.
The current revival, underway since roughly 2010, has clustered in Anglo-American Catholic intellectual life. Adrian Vermeule's legal-political-philosophical work, above all Common Good Constitutionalism (2022), gave it a canonical American statement. Structurally the argument tracks Khomeini's Islamic Government (1970) almost beat for beat (revealed truth outranks procedural legitimacy), though the two traditions arrive there through incompatible theologies and would never recognize each other as allies [see the Autocratic Theocracy dossier section on Vermeule and Khomeini as parallel statements]. Around Vermeule, a wider post-liberal Catholic current (Patrick Deneen, Sohrab Ahmari, and assorted adjacent figures) has filled in the analysis. That current bleeds heavily into the paleoconservative ecosystem, with Deneen's Why Liberalism Failed (2018) acting as the bridge text between the two [see the Paleoconservatism dossier section on the integralist-paleoconservative ecosystem]. Carrying all of it is a Catholic-traditionalist publishing apparatus: First Things in its more integralist moods, a cluster of integralist-aligned online outlets, and the wider traditionalist book trade.
Beyond the Anglo-American orbit, integralism has footholds in Latin American Catholic intellectual life, in Eastern European traditionalist currents (Poland and Hungary especially), and in scattered smaller networks across several countries. What it does not have anywhere is a political vehicle. The influence is real among Catholic intellectuals and stops there; nothing resembling a coalition capable of enacting the program exists.
Key Thinkers
His Immortale Dei (1885) set the canonical Catholic terms for how church should relate to state, and the framework he built from the papal chair has shaped every integralist who came after.
A Savoyard diplomat writing in the wake of the French Revolution, he laid down much of integralism's earliest analytical groundwork and seeded both French and wider European strands of the tradition.
A Spanish Catholic writer whose Essay on Catholicism, Liberalism, and Socialism (1851) built the integralist case against a politics cut loose from religious authority and from the Church's account of moral truth.
A Harvard Law professor and Catholic convert whose Common Good Constitutionalism (2022) is the canonical American statement of the position, and the single most consequential integralist thinker now working in the Anglo-American world.
An Austrian Cistercian monk who, largely through the online journal The Josias, has done more than anyone to give contemporary strict integralism a worked-out doctrinal apparatus.
Key Texts
The papal encyclical that fixed the Catholic framework for relating church to state, and the document later integralists keep returning to as their starting point.
Pius XI established the Feast of Christ the King here, and used it to insist that Christ's kingship governs public life and political authority, not just the private soul.
Donoso Cortés's mid-century broadside, and the sharpest nineteenth-century Spanish statement of why a secularizing politics looked, to Catholic eyes, like a road back to chaos.
Vermeule's attempt to put integralism in the language of constitutional law, and the book that organized the American Catholic post-liberal conversation around itself.
Deneen's argument that liberalism failed precisely because it succeeded at its own premises. Not strictly integralist, but it shares enough of the diagnosis to have pulled integralism into the mainstream conversation.
Modern Manifestations
Today the tradition lives mostly in Anglo-American Catholic intellectual life. Three things carry it: Adrian Vermeule's legal-political-philosophical work; the wider post-liberal Catholic current around Patrick Deneen, Sohrab Ahmari, and various adjacent writers; and a Catholic-traditionalist publishing world that runs from First Things in its more integralist moods to The Josias and the broader traditionalist book trade.
The academic footprint is concentrated and Catholic. Harvard Law School matters because Vermeule teaches there, Notre Dame because it houses the post-liberal scene, and the Catholic University of America and a handful of smaller institutions round out the rest. Since roughly 2015 the line has been rising.
Politically the picture inverts: plenty of influence, almost no apparatus. Populist-right movements owe it intellectual debts, Hungarian Fidesz under Orbán most clearly, along with parts of the American Catholic-aligned right, yet nothing you could call an integralist party or program has materialized.
The tradition also surfaces well beyond the Anglosphere. Argentine, Brazilian, and other Latin American Catholic circles host their own integralist currents; Poland and Hungary sustain active traditionalist scenes; and smaller networks turn up across a range of countries.
Online, it travels through the Catholic-traditionalist corner of the internet: podcasts and YouTube channels, a busy presence on Twitter and other platforms around the movement's leading writers, and the broader traditionalist subculture that surrounds them.
Real-World Debates
Authority is one thing, not two, and the wall between religious and political power is the mistake. From that premise the contemporary position follows: the state should recognize Catholic Christianity as its foundation, build its laws on natural-law reasoning, and limit religious pluralism wherever a rival tradition collides with Catholic moral commitments. The historical attempts at that integration produced uneven results, and squaring those results with the theory is work the tradition is still doing.
Vermeule's Common Good Constitutionalism wants judges to read the Constitution through natural law, which sets it directly against the originalism that has run the American conservative legal movement since the mid-1980s. American Catholic thinkers have argued this one hard. Whether a natural-law reading could actually be made to operate inside the existing constitutional order is the open question, and nobody on either side treats the answer as settled.
Religious liberty is where the friction shows up most plainly. The orthodox line makes liberty conditional: you get it insofar as you stay inside Catholic natural-law limits. More pragmatic integralists bend on the specifics, conceding particular cases to keep the broader project viable. How to fit any of this together with American religious pluralism is exactly what the two camps cannot agree on.
The state, on this account, should actively foster the traditional family rather than stay neutral about it. In practice that means a concrete menu: child tax credits and other family-friendly tax policy, hard limits on abortion and the reproductive-rights apparatus, restrictions on legal accommodation of gender transition, and public backing for Catholic religious institutions.
On economics the tradition borrows from Catholic social teaching, Leo XIII's Rerum Novarum and Pius XI's Quadragesimo Anno above all, and that inheritance makes it far more willing to use the state than the conservative-libertarian consensus that ran the postwar American right. So it backs intervention to shore up the household economy, pushes back against concentrated multinational corporate power, and asks that economic policy be aimed at what natural law calls human flourishing rather than at growth for its own sake.
Criticisms & Blind Spots
Strongest Critique
Give the tradition its due first. From Leo XIII's Immortale Dei (1885) through the contemporary Vermeule-Pappin engagement with liberal political theory, integralism mounts a real challenge to the post-1789 assumption that political authority flows up from popular consent rather than down from theological truth. It is serious enough that thinkers like MacIntyre and Sandel, and a good deal of the post-liberal literature, still argue with it on the merits rather than waving it off. The most durable objection comes from within the Western political tradition itself, and it cuts across both the liberal and the classical-conservative side: once you put political authority under religious authority, you lose the ability to govern a genuinely plural society in good faith. American religious life has been plural since the founding. Integralist writing has never reckoned with that fact at the depth it demands, and the silence reads as structural rather than accidental. Catholics raise their own version of the complaint. Rejecting Vatican II's religious-liberty teaching puts integralism crosswise with the Church as it has actually developed since the Council, and Francis's public distancing only sharpened the point. Integralists answer in three incompatible ways, accepting Francis, defying him, or reinterpreting him until he agrees, and none of the three has closed the distance. From the conservative-libertarian right comes a different charge: integralism's appetite for economic intervention breaks the fusionist deal that held the postwar American conservative coalition together. The populist turn after 2016 only deepened that rift, and it has not healed. Progressives press the most concrete point of all. Integralism's natural-law commitments really would roll back contemporary protections on reproductive rights, on legal recognition for gender transition, and on religious liberty for non-Catholics. As a description of what the program implies, that is simply accurate. Defenders reach for softer formulations now and then, but the founding texts give them little to work with.
Blind Spots
Pluralism is the spot that costs the tradition most. Integralism coheres in a Catholic society; it strains everywhere else, and America has been a patchwork of faiths since the founding and is growing more so by the decade. The contemporary writers have not sat with that fact long enough, and the analytical implications are heavy enough that the neglect is hard to excuse. Its own track record is the next thing it tends to look past. Pre-Vatican-II Catholic-conservative governments, the 1930s entanglement with authoritarian-Catholic regimes, real institutional gains for the Church bought alongside democratic backsliding and a heavy bill for everyone outside the favored confession: the history is mixed at best. When integralists engage it, they tend to dwell on the comfortable chapters and skip the ones that actually need explaining. The boundary with the wider post-liberal current is fuzzier than integralists admit, and the fuzziness has a price. The two camps overlap, the line between them is disputed, and the question has been worked only halfway. Leave it there and integralism risks being quietly swallowed by a post-liberalism that does not, in the end, share its commitments. Then comes the mechanics nobody has solved: how would any of this be installed in the American system as it stands? The First Amendment is a wall integralism cannot wish away. Some propose reinterpreting it; others accept current religious-liberty law and bet on cultural change instead. Neither answer convinces, and the tradition has not been straight with itself about how hard the obstacle really is. One more thing gets too little weight: what integralism owes the Protestants. American religious culture has been Protestant-led from the start, integralist commitments grind against that inheritance, and the movement would need Protestant cooperation to get anywhere. It has yet to offer a serious account of what it would give them in return.
Internal Tensions
Start with the question that divides integralists most sharply among themselves: could any of this actually be built in America? Orthodox integralists say no, not really, because a genuine confessional order needs a Catholic foundation the United States plainly does not have. Pragmatists answer that integralist-flavored institutions can be assembled even on secular ground, since natural-law arguments can travel under non-religious labels and win on those terms. The orthodox camp is more honest about the prerequisites; the pragmatic camp is likelier to win a few rounds. Each is partly right, and the dispute stays open. Then there is the awkward relationship with the Church the tradition claims to serve. Orthodox integralists reject Vatican II's liberal-political commitments outright; pragmatists keep the analysis but operate inside the post-conciliar Church anyway. Pope Francis made his distaste for integralist politics public, which settled the institutional question while leaving the intellectual one exactly where it was. Where integralism ends and the broader post-liberal current begins is its own running argument. Integralism is specifically Catholic down to its premises; the surrounding post-liberal scene is far less religious. Nobody has drawn that boundary cleanly, and the stakes are practical: it decides whether integralism can recruit allies or has to march alone. Pluralism supplies a fourth fault line. American religious life has been plural since the founding, which grinds against integralist commitments no matter how they are stated. Some integralists respond by defending a specifically Catholic public order while tolerating pluralism elsewhere, a concession the founding texts would not have made. Others hold out for a fuller natural-law order that would bind non-Catholics too: more consistent, far harder to sell. The last strain is the one between rigor and reach. The intellectual machinery has earned real standing inside Catholic circles and almost none beyond them. Deepen the Catholic content and you buy isolation; dilute it to attract a coalition and you lose what makes integralism integralism. Neither door looks obviously right, and the tradition keeps standing in the hallway.
Reading List
Vermeule, a Harvard Law professor and Catholic convert, argues in this 2022 book that American constitutional law should be reread through pre-liberal natural-law categories. It is the fullest integralist statement yet to land inside Western legal academia: bracing, frequently faulted for dodging the institutional details, and the text the whole current debate circles.
This 1885 encyclical from Leo XIII is the canonical pre-Vatican II claim that the state owes worship to God and should recognize the Catholic Church as the true religion. It is the doctrinal floor today's integralists build on, and worth reading in the original to measure just how far the tradition stands from Vatican II's Dignitatis Humanae.
A 2018 surprise bestseller in which Deneen argues that liberalism's pathologies grow out of its founding metaphysics rather than from any accident along the way. The diagnosis lands harder than the cure, but this is the book that made post-liberal thought readable for a general audience and pulled integralism into public view.
MacIntyre's 1981 assault on post-Enlightenment moral philosophy treats modern ethical talk as the wreckage of a once-coherent Aristotelian-Thomistic tradition. It is not integralist in any formal sense, yet Catholic integralists keep coming back to it, and the closing 'St Benedict' paragraph has become a touchstone they quote almost reflexively.
Edited by a Cistercian monk, this is the online journal where contemporary integralist political theology is actually hammered out. Read it as a primary source: across hundreds of essays you watch the position argue with itself and work out what integralism means under 2026 conditions rather than 1885 ones.
In this 2023 popular tract Ahmari makes the case for turning state power against corporate concentration, on grounds that sit right next to integralist political theology. It is the economic-policy face of post-liberalism, and valuable because it ties the program to concrete fights, labor law, antitrust, family policy, that other integralist texts keep at arm's length.
Frequently Asked Questions
Integralism is the Catholic political-theological tradition holding that political authority should be subordinated to religious authority, with church and state operating as integrated rather than separate institutions. The position runs that the post-1789 liberal settlement, including religious-liberty arrangements and the assumption that politics is downstream of popular consent, is a category mistake about what political authority actually is. Adrian Vermeule's Common Good Constitutionalism (2022) is the canonical contemporary American statement.
The nineteenth-century foundations are Joseph de Maistre, Louis de Bonald, Juan Donoso Cortés (Essay on Catholicism, Liberalism, and Socialism, 1851), and Cardinal Henry Manning. The papal magisterium did the heavy doctrinal work: Pius IX's Syllabus of Errors (1864), Leo XIII's Immortale Dei (1885), Pius X's Pascendi (1907), Pius XI's Quas Primas (1925). The contemporary American current centers on Adrian Vermeule at Harvard Law, Patrick Deneen at Notre Dame, Sohrab Ahmari at Compact, and Edmund Waldstein at The Josias.
Adrian Vermeule's 2022 framework proposing that American constitutional law should be reread through pre-liberal natural-law categories rather than through the originalist-textualist approach that has dominated American conservative legal thought since the 1980s. The basic move: thick moral commitments grounded in classical natural-law theory should shape constitutional interpretation, with judges and officials authorized to read the document toward the common good. The Federalist Society network has been internally divided over the proposal.
Integralism is what traditional conservatism becomes when it adopts an explicitly Catholic political-theological vocabulary rather than the more secular Burkean one. Both descend from the Maistre-Donoso lineage, both defend inherited institutions against rationalist reform, and both reject the liberal-procedural assumption that politics is downstream of popular consent. The integralist position is more specifically theological: the state should recognize Catholic truth, not just inherited cultural practice. Traditional conservatism stops short of that step.
Related but not identical. Integralism is about the structural relationship between religious and political authority; Catholic nationalism is about specifically Catholic identity as a national-political project. The two overlap in contexts like Orbán's Hungary or Kaczyński's Poland, where Catholic-traditional commitments and national-political identity reinforce each other. Vermeule and Deneen are integralists rather than nationalists; their concern is the structure of authority more than the boundary of the nation. The post-liberal current contains both.
Pope Francis has been openly unsympathetic, distancing the contemporary magisterium from integralist political projects in multiple public statements. The Vatican II commitments to religious liberty (Dignitatis Humanae, 1965), ecumenical dialogue, and engagement with liberal-democratic institutional life are difficult to square with the orthodox integralist position. Catholic-traditionalist communities that reject Vatican II (the Society of Saint Pius X most prominently) hold one side; integralists working within post-Vatican-II infrastructure hold the other. The split has not narrowed.
The treaty between the Vatican and Mussolini's Italy formalized institutional church-state cooperation inside the fascist regime, supplying the template Franco's 1937 Decree of Unification adapted. The overlap between integralism and authoritarian-Catholic political movements through the 1930s is the historical record the contemporary tradition has to argue against rather than around. Contemporary defenders distinguish the analytical content from the political company it kept; critics argue the company was not accidental.
From inside the Catholic tradition: the orthodox integralist rejection of religious-liberty commitments conflicts with Vatican II's Dignitatis Humanae and with Pope Francis's contemporary positioning. From outside: integralism's natural-law commitments would constrain contemporary civil-rights frameworks around reproductive rights, gender accommodation, and religious liberty for non-Catholic traditions. The classical Lockean challenge is that the state cannot enforce religious truth because beliefs cannot be coerced into authenticity. The American First Amendment is a structural constraint integralism cannot wish away.
Related Ideologies
Both want Catholic institutions protected, though they want it for different reasons: integralism for the sake of church-state integration, traditional conservatism for the sake of cultural continuity more broadly. In practice the alliance holds across most religious-liberty litigation and has been a working part of American Catholic politics since 2010.
On family policy the two run together, both grounding it in Catholic natural law. Where they differ is emphasis: distributism cares first about how property is spread, integralism about how religion and politics fit together. The partnership has been live in American Catholic circles since 2010.
Here the fit is uneasy. Civic conservatism prizes constitutional procedure; integralism wants the document read through natural law instead. The result has been an argument more than an alliance, with the Federalist Society network split down the middle over the integralist challenge to originalism.
What unites them is a shared rejection of liberal proceduralism; what separates them is what they would put in its place, a Catholic confessional order for integralism, national identity for right-wing nationalism. The alliance functions inside today's populist-right intellectual scene, with that difference always humming underneath.
Where Integralism sits on the map
The quiz places Integralism in the Authoritarian Center region, one of the nine on its map. The region page covers what those traditions share and who tends to land there.
See all 81 ideologiesIntegralism compared
Side-by-side comparisons of Integralism with the traditions it is most often confused with or argued against.
All ideology comparisonsMore on Integralism
Are you a Church-Guided Statist?
Take the quiz and find out where you actually stand among 81 political ideologies.
Take the Quiz