America First’s real test is Washington, not Iran

The Iran crisis has become more than another confrontation in the Middle East. For America First, it is a test of a political promise: Can the United States break from the cycle of endless wars, reserve its power for clear national interests, and resist turning every foreign crisis into another open-ended American commitment?

That question goes to the heart of what America First was supposed to change.

For its supporters, America First has never meant abandoning American power or retreating from the world. It means asking harder questions about how that power is used and for what purpose. Must every regional threat become a test of American credibility? Must every crisis lead to a larger military commitment? Or is American strength better preserved when Washington knows not only when to act, but when not to become trapped in another conflict with no clear end?

The experience of the past two decades gave that argument its political force.

The wars in Afghanistan and Iraq began with promises of greater security but became symbols of enormous human, financial, and strategic costs. For many Americans, they raised a basic question: Did prolonged overseas interventions actually serve the direct interests of the United States?

From that experience came one of the central promises associated with America First: ending endless wars.

That promise did not mean giving up American military strength. It meant using that strength more selectively, with clearer objectives and greater restraint. But the Iran crisis has exposed a deeper challenge. The greatest obstacle to America First may not be abroad. It may be inside Washington itself.

Washington does not necessarily defeat America First by openly rejecting it. It can neutralize the doctrine by absorbing it into the same foreign-policy logic America First was supposed to challenge.

The real issue, then, is not whether a president can change the rhetoric of American foreign policy. It is whether a president can change a system that has operated according to a different set of assumptions for decades.

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Every president who enters the White House promising a new approach confronts an entrenched network of institutions, policy experts, security calculations, and established interests that shape foreign-policy decisions. Administrations change, but much of the structure surrounding American foreign policy remains.

Critics often describe this system as the Washington establishment, or the “Blob“: a foreign-policy class that has long treated extensive global commitments, a broad international military presence, and constant readiness to respond to overseas crises as necessary to preserve American primacy.

From an America First perspective, Washington’s problem is not a lack of power. It is a lack of priorities.

The United States remains the world’s strongest military and economic power. The question is whether that power needs to be employed in every crisis and every region, or whether it should be managed with greater strategic discipline.

The traditional Washington argument has been remarkably consistent. Reduce commitments abroad, and American credibility may suffer. Decline to intervene, and rivals may become bolder. Refuse to escalate pressure, and deterrence may weaken. Withdraw forces, and a power vacuum may emerge.

Those concerns cannot simply be dismissed. But America First emerged precisely because many voters came to believe that this logic had repeatedly pushed the United States toward commitments with no obvious endpoint.

The problem is not that America lacks the ability to project military power. The problem is that military power without a limited and clearly defined political objective can become a commitment that is much easier to enter than to leave.

The Iran crisis therefore presents America First with a fundamental test: Can Washington distinguish between deterrence and war, between demonstrating strength and becoming trapped in prolonged conflict, and between preserving credibility and accepting unlimited costs?

That question reaches beyond Iran. It concerns the definition of the American national interest itself.

Does protecting that interest require the United States to manage crises across the world indefinitely? Or is American power more sustainable when foreign-policy objectives are narrower, more realistic, and more closely tied to domestic priorities?

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This is where foreign policy becomes domestic policy.

The costs of overseas commitments are not paid only on distant battlefields. They are also carried by American taxpayers, by resources diverted from priorities at home, and by families that ultimately bear the consequences of decisions made in Washington.

For America First, that should be the basic test of any foreign commitment. Does it make Americans safer? Is the objective clearly defined? Are the costs proportionate to the interests at stake? And does the policy reduce risk, or create another commitment that may expand long after its original purpose has disappeared?

If a foreign commitment does not increase American security, drains national resources, and raises the risk of a prolonged war, then it is reasonable to ask whether it serves the national interest at all.

Changing that calculation, however, is more difficult than changing administrations.

The central problem is not simply personnel. It is a strategic culture built over decades. Presidents come and go, while the institutions and assumptions surrounding foreign policy remain. Again and again, leaders who arrive in Washington promising change find themselves pushed toward many of the same choices made by their predecessors.

That is why Iran represents a larger test for America First.

The question is no longer whether the doctrine can win elections or shape campaign rhetoric. The question is whether it can fundamentally alter the logic by which Washington decides when, where, and why the United States uses its power.

If America First cannot change Washington, then Washington may eventually change America First.

And history may remember the Iran war not merely as another chapter in America’s long experience with open-ended conflicts, but as the moment that revealed where the doctrine’s hardest battle was being fought all along: not in the Middle East, but in the corridors of power in Washington.

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The views expressed in this article belong to the author and do not necessarily reflect the editorial policy of Middle East Monitor.