The Iran air campaign was won by a Republican Party whose internal foreign policy disagreements had been temporarily suppressed. The seven-week blockade that followed has restored them to public view. Four distinct Republican foreign policy traditions are now visibly competing for the president's ear and for the votes of his coalition in Congress. The categories are familiar to anyone who has read Walter Russell Mead's Special Providence: the Jacksonian, the Hamiltonian, the Jeffersonian, and the Wilsonian. What is unusual about the current moment is not the existence of the four schools but their simultaneous visibility inside a single party, at a moment of consequential decision, on a foreign policy question whose answer will shape the rest of the administration.

The four traditions are not new, and any reader of Walter Russell Mead's work on American foreign policy will recognize the categories. What is new is their visible competition inside a single party at a moment of consequential decision. Mead, in his 2001 book Special Providence, identified four enduring schools of American foreign policy thought: the Hamiltonian, which emphasizes commercial interests, the rules-based order, and the maintenance of alliances; the Wilsonian, which emphasizes the spread of democratic values and human rights; the Jeffersonian, which emphasizes restraint, the protection of constitutional government at home, and skepticism toward foreign entanglements; and the Jacksonian, which emphasizes honor, national pride, decisive use of force in response to provocation, and a populist understanding of who counts as a member of the political community on whose behalf foreign policy is made. The four traditions have always cut across party lines, with Democrats and Republicans alike including members of each school in varying proportions across American history. What is unusual about the current moment is that all four traditions are now visibly active inside the Republican coalition, that they disagree with one another on the central question of what the Iran operation should now do, and that the president himself is operating from a Jacksonian instinct that the other three traditions are attempting in various ways to refine, redirect, or restrain.

The Jacksonian Core

The Jacksonian school is the dominant element in the Trump-era Republican coalition, and it is the school whose worldview most directly produced the Iran air campaign. The Jacksonian disposition holds that a country that has been attacked has both the right and the obligation to respond with decisive force, that the response should be calibrated to deterrent effect rather than to legalistic or proportional constraints, and that the political community on whose behalf the response is made is defined by citizenship and historical participation rather than by abstract membership in a global order. The Iranian regime had killed approximately six hundred Americans across forty years, had been on a trajectory toward a deliverable nuclear weapon that would foreclose future American options for response, and had presented the kind of accumulated provocation that the Jacksonian disposition reads as requiring an answer. The forty-five-day air campaign that produced the ceasefire was a Jacksonian operation in the cleanest sense: short, decisive, calibrated to honor-restoration rather than to nation-building, and clearly bounded in a way that the post-9/11 wars had not been.

The president himself operates from this disposition, and the broad popular support for the air campaign reflected the Jacksonian disposition's resonance with a wider electorate than the Republican base alone. Polling during the campaign showed approval levels above 60 percent for the operation across all major demographic categories, including a significant minority of self-identified Democrats whose underlying Jacksonian instincts were activated by the specific circumstances of the Iranian regime's behavior. The Jacksonian moment in foreign policy is the moment when the country's instinct to respond to provocation becomes politically dominant, and that moment was the moment the air campaign was conducted.

The Jacksonian school does not have a natural theory of what comes after the decisive use of force. The honor having been restored, the deterrent having been established, the provocation having been answered, the Jacksonian disposition expects the country to return to its normal posture and to leave the post-conflict management to other tools and other practitioners. The blockade, in Jacksonian logic, is acceptable only insofar as it is closing out the operation that the air campaign began. A blockade that extends past the point of necessary closure and that begins generating its own diplomatic and economic momentum is a Jacksonian operation that has been captured by other schools, and the Jacksonian response to that capture is generally to demand that the operation be wound down and the country brought home. The president's own instincts on the blockade have been visible in the periodic public remarks suggesting that he expects the Muscat talks to produce a settlement quickly and is impatient with the indefinite operational commitment that the Pentagon's planning timeline now contemplates. Those remarks reflect Jacksonian impatience with operations whose original justification has been satisfied and whose continued execution serves objectives the original disposition did not authorize.

The Hamiltonian Establishment

The Hamiltonian school, which has been the dominant intellectual tradition in the American foreign policy establishment for the past three generations, is the school that has effectively designed and operated the post-ceasefire phase of the Iran operation. The Hamiltonian disposition reads the Iranian situation primarily through the lens of the broader rules-based international order, the strategic relationships with Israel and the Gulf states, the maintenance of American alliances in Europe and Asia, and the political-economic question of how the world's largest oil-producing region remains aligned with American interests. The blockade, in Hamiltonian logic, is a tool for producing a comprehensive settlement that addresses Iranian nuclear, missile, and regional behavior in ways that codify a long-term Iranian retreat from the strategic posture that has been the source of regional instability since 1979. The blockade is also a demonstration of American capability that signals to other potential adversaries, including China and Russia, that the United States retains both the willingness and the operational capacity to enforce maritime regimes against nuclear-aspirant powers.

The Hamiltonian operation has been run primarily by the national security professionals at the State Department, the Treasury Department, and the National Security Council, who are the personnel for whom the comprehensive settlement remains the operational objective. Special Envoy Steve Witkoff, despite his lack of conventional diplomatic background, has been operating in the Muscat track on a Hamiltonian agenda whose contours have been shaped by Secretary of State Marco Rubio, National Security Advisor Mike Waltz, and the Treasury Under Secretary for Terrorism and Financial Intelligence, all of whom are practitioners of the Hamiltonian tradition in its modern Republican form. The opening American position in Muscat, as reconstructed from leaks in the past week, is the Hamiltonian position: verifiable nuclear limits, verifiable missile constraints, verifiable termination of arms transfers to proxies, all tied to a staged lifting of the blockade that preserves American leverage throughout the implementation period. The position is internally coherent, it is the position the foreign policy establishment would always have preferred, and it is the position that has been gradually expanded over the course of the operation from the narrower ceasefire-enforcement objective that justified the operation's initial launch.

The tension between the Hamiltonian operation and the Jacksonian disposition that authorized it is the principal internal tension of the current administration. The Hamiltonians require the operation to extend long enough to produce the comprehensive settlement; the Jacksonians require the operation to wind down once the original honor-restoration objective has been satisfied. The conflict between these two requirements has been managed for the past several weeks through a combination of presidential ambiguity and bureaucratic momentum, but the conflict has not been resolved, and the operational pressure on the Carl Vinson strike group, the diplomatic pressure on the Muscat track, and the political pressure from the War Powers Resolution challenge in the House are all now requiring that the conflict be resolved one way or the other within the coming weeks.

The Jeffersonian Restrainers

The Jeffersonian school is the smallest of the four traditions in absolute terms within the current Republican coalition, but it is the school whose visibility has grown most rapidly during the blockade period and whose institutional infrastructure has matured most significantly over the past decade. The Jeffersonian disposition holds that American foreign policy should be calibrated to the protection of American constitutional government at home, that foreign entanglements carry corrupting effects on the domestic political system that the Founders correctly identified and warned against, that the executive branch's tendency to accumulate war-making authority is a structural threat that conservatives have a particular obligation to resist, and that the appropriate posture toward most foreign conflicts is one of strategic restraint rather than of active engagement.

The Jeffersonian school's institutional infrastructure, which includes the Quincy Institute, the Charles Koch Foundation's foreign policy programs, the libertarian-leaning portions of the American Conservative magazine's editorial output, and the foreign-policy commentary of figures including Tucker Carlson and Curt Mills, has been the primary organizing force behind the 47-member War Powers Resolution challenge filed last week. The challenge itself is the most visible Jeffersonian act of the post-air-campaign period, and the fact that 31 of its 47 signatories are Republicans reflects the genuine constituency the Jeffersonian disposition now commands inside the party's House caucus. Representatives Thomas Massie, Warren Davidson, Andy Biggs, Chip Roy, and Matt Gaetz, who have been the public faces of the challenge, are all members of the Jeffersonian tradition in its libertarian-conservative form, and their willingness to apply the same standards to a Republican administration's military operation that they applied to previous Democratic administrations represents the kind of principled consistency that distinguishes a serious foreign policy tradition from a partisan rationalization.

The Jeffersonian critique of the blockade rests on the structural arguments that the school has always made about open-ended military commitments: the constitutional question of who authorizes war is being answered by executive action rather than by congressional deliberation, the economic costs of the operation are being absorbed by American consumers and American military readiness without corresponding democratic accountability, and the diplomatic objectives the operation now serves are broader than the original justification authorized. The school is not opposed in principle to the use of force, as the consistent Jeffersonian support for the air campaign demonstrated, but is opposed to the conversion of decisive use of force into sustained operational commitment without renewed constitutional authorization. The 60-day War Powers clock that runs out on June 11 is the operational deadline around which Jeffersonian organizing in the House is now being mobilized, and the question of whether the Speaker can continue to bury the challenge past that deadline is the procedural question on which the constitutional contest will be decided.

The Wilsonian Hawks

The fourth tradition, the Wilsonian school, is the tradition whose Republican expression has been most consequential in the foreign policy debates of the post-Cold War era and is the school whose continuing presence in the Republican coalition is now the most contested. The Wilsonian disposition holds that American foreign policy should be calibrated to the promotion of democratic values, human rights, and the rule of law on a global scale, that the spread of democratic institutions abroad is connected to the security of democratic institutions at home, and that the appropriate American response to authoritarian regimes is the active promotion of their replacement by democratic alternatives. The school's modern Republican expression, which includes the neoconservative tradition associated with William Kristol, the democracy-promotion agenda associated with Paul Wolfowitz and the second Bush administration, and the current operational expression in the Senate work of Tom Cotton, Lindsey Graham, and the late Mitch McConnell's foreign policy positioning, has been the most consistent advocate inside the Republican coalition for the broader regime-change objectives that the Iran operation has been quietly accumulating.

The Wilsonian reading of the Iran operation, articulated most directly in a recent Cotton op-ed in the Wall Street Journal and in continuing background commentary from senior Senate Republicans, is that the air campaign and the blockade together have created a once-in-a-generation opportunity to produce the collapse of the Islamic Republic itself, that the appropriate American posture is to maintain the operational pressure long enough to produce the internal Iranian succession dynamics that would deliver that outcome, and that any settlement short of fundamental change in the Iranian political order is a strategic concession that the country will eventually regret. The school's argument has not been the dominant argument in the administration's internal deliberation, but it has been the argument whose presence in the broader coalition has prevented the Jacksonian instinct to wind down the operation from producing a quick exit, and it is the argument that the Israeli government and the Saudi government have been quietly amplifying through their respective Washington channels.

The Wilsonian position is the position furthest from the Jeffersonian position, and the institutional tension between the two schools is the tension that defines the current Republican foreign policy debate. The Jacksonians and the Hamiltonians can be reconciled through careful calibration of operational timelines and political messaging; the Wilsonians and the Jeffersonians cannot be reconciled at all, because they disagree about the fundamental purpose of foreign policy. The Wilsonians want the operation to continue until regime change is produced. The Jeffersonians want the operation to end because regime change is precisely the kind of objective that no military operation should be authorized to pursue without constitutional sanction. The president, whose own instincts are Jacksonian, is now being lobbied from both directions, and the question of which direction wins the internal debate will determine the duration of the blockade, the substantive content of the Muscat track, and the political configuration of the Republican coalition for the remainder of the administration.

What the Schism Means

The visible four-way schism does not constitute a crisis. It surfaces a structural reality that has been latent in the Republican coalition for at least a decade and that the speed of the Iran air campaign had temporarily obscured. The coalition's foreign policy unity during the active phase of the operation reflected the fact that all four schools could endorse the air campaign for their own reasons: the Jacksonians because honor demanded it, the Hamiltonians because the broader strategic order required it, the Jeffersonians because the specific provocations had been severe enough to satisfy their high threshold for the use of force, and the Wilsonians because the campaign was a step toward the regime-change objective they had long pursued. The unity was real, but it was an alignment of separate motivations rather than a fusion of foreign policy traditions, and the alignment was always going to come apart once the operational phase moved past the active campaign and into the harder question of what the campaign had been for.

What the schism means for the immediate decisions facing the administration is that the next steps in the Iran operation will have to be designed to accommodate a coalition whose internal logic no longer points in a single direction. A narrow settlement that lifts the blockade in exchange for verifiable nuclear concessions, on the Hamiltonian model, will be acceptable to the Jacksonians who want the operation closed out and to the Jeffersonians whose constitutional concerns are satisfied by the visible termination of the operation, but it will be opposed by the Wilsonians for whom the regime survives the settlement. A broader settlement that addresses Iranian missile and proxy behavior comprehensively, on the maximal Hamiltonian model, will be acceptable to the Wilsonians whose regime-change objectives are at least partially advanced by the broader constraints but will be opposed by the Jeffersonians on the constitutional grounds and by the Jacksonians whose patience with the operational timeline has been exhausted. A continuation of the blockade past June 11 without renewed authorization, on the maximal Wilsonian model, will be acceptable to the Wilsonians but will trigger the constitutional confrontation in the House that the Speaker has been working to avoid and will produce a Republican coalitional crisis whose downstream effects on the broader political position of the administration cannot be predicted.

The administration's eventual decision will most likely be a hybrid that splits the difference between the four positions in ways no single tradition fully endorses. The hybrid will reflect Jacksonian instinct in the Oval Office, Hamiltonian operation at the State Department, Jeffersonian pressure in the House, and Wilsonian lobbying from the Senate and from foreign capitals. American foreign policy has usually been made this way when the country's enduring traditions are in active competition, and the present moment is therefore unsurprising in the long view. The Republican coalition is rediscovering that its apparent unity on first principles concealed durable internal disagreements that operational decisions inevitably surface. The question for the next four weeks is whether a settlement can be articulated that allows each tradition to claim partial victory and prevents any single tradition from being so visibly defeated that its commitment to the coalition breaks. The War Powers clock runs out on June 11. The articulation will have to be ready by then.