In London, the language has shifted.
“Trump can’t be reasoned with anymore,” a diplomatic source told me as the war with Iran intensified and the rhetorical temperature between Washington and Keir Starmer rose in tandem. The remark was not offered lightly, nor by someone predisposed to defend Starmer. It was, instead, an admission of a broader European mood—one that has hardened in recent weeks into something approaching consensus.
Across allied capitals, officials are no longer asking how to influence Donald Trump. They are asking how to outlast him.
This is not strategy in the traditional sense. It is endurance. The expectation—quietly shared in policy circles from London to Brussels—is that the next meaningful inflection point in U.S. foreign policy will not come from negotiation or recalibration, but from the American electoral calendar. The midterm elections, in this view, are less a domestic event than a geopolitical horizon: the moment when Trump’s power might begin to narrow, if not in formal authority then in political leverage.
That allies now speak this way marks a profound shift. For much of the past year, the United Kingdom in particular invested heavily in cultivating Trump—through ceremony, flattery, and the unprecedented extension of a second state visit. The assumption was that access would translate into influence, that proximity to the president could shape outcomes at the margins.
It has not.
If anything, the opposite conclusion is taking hold: that there is no reliable mechanism—personal, institutional, or diplomatic—for steering a presidency that resists constraint by design. The rituals of alliance remain intact, but their utility has diminished.
The question that follows is less comfortable. If Trump cannot be influenced, who can?
In Washington, attention has increasingly turned to Marco Rubio. Formally, his role is familiar: chief diplomat, steward of American foreign policy. Substantively, however, his position appears to have expanded. Rubio operates not only within the traditional bounds of the State Department but also at the center of strategic decision-making, where lines between diplomacy and doctrine blur.
Rubio’s approach is notably more assertive than that of his predecessors—more willing to embrace intervention, less inclined toward the incrementalism that defined recent administrations. It is also, by most accounts, closely aligned with Trump’s current instincts, while simultaneously projecting a coherence that the president himself often disregards.
By contrast, JD Vance has receded from view. Whether this reflects internal dynamics or deliberate positioning is difficult to assess from the outside. But the asymmetry is striking. In an administration where proximity to the president confers power, visibility is rarely incidental.
None of this, however, alters the central fact: authority remains concentrated in Trump. And it is that concentration—combined with a governing style that privileges speed over deliberation—that has shaped the current conflict.
The decision to engage Iran appears to have been premised on a familiar assumption: that a limited application of force could achieve discrete objectives without cascading escalation. A controlled demonstration. A short horizon.
But wars resist containment. The effective closure of the Strait of Hormuz—an artery through which roughly a fifth of the world’s oil flows—has exposed the fragility of that assumption. What might have been conceived as a tactical operation now carries systemic implications, extending well beyond the immediate theater of conflict.
For NATO, the situation presents a dilemma. There is little appetite among European members for deeper military involvement. Yet the economic stakes—particularly those tied to energy supply—narrow the space for abstention. Strategic reluctance collides with structural dependence.
This tension underscores a broader point that has often been obscured in political rhetoric. The restraint shown by previous administrations toward Iran was frequently characterized, especially by Trump, as weakness. In reality, it reflected a different calculus: an assessment that the costs of large-scale confrontation—military, economic, and regional—would likely exceed its benefits.
That calculus has not changed. The context has.
Beyond policy debates and alliance politics, the effects of the conflict are already registering in more diffuse but telling ways. In Dubai, a city that has come to symbolize a certain kind of globalized affluence, departures have accelerated. The infrastructure of luxury remains, but the sense of insulation has eroded. Proximity to instability, once abstract, has become immediate.
From Israel, similar signals. An American acquaintance, departing Tel Aviv, described the experience with a clarity that official statements rarely capture: “I may have some skill in writing about 21st-century conflicts, but I am not eager to be in the center of one again. I haven’t felt like this since September 2001.”
These are individual decisions, but they accumulate into a pattern—one that reflects not only fear, but recalibration.
At home, the political implications are still forming. Trump’s appeal has long rested, in part, on a promise to avoid the kinds of protracted conflicts that defined earlier eras of U.S. foreign policy. The current trajectory complicates that narrative. Military engagement, rising casualties, and economic disruption introduce variables that are difficult to reconcile with the image of controlled disruption he has cultivated.
At the same time, attention within Republican circles is beginning to extend beyond the present administration. Rubio’s expanded role has not gone unnoticed among donors and party strategists. His positioning—simultaneously inside the administration and distinct from it—suggests an awareness of the political terrain that may follow.
For now, however, such considerations remain secondary to the immediate reality. Allies are not attempting to reshape American policy; they are bracing for its continuation. The mechanisms of influence that once defined transatlantic relations—shared doctrine, institutional consultation, personal diplomacy—have given way to something more provisional.
Observation. Adaptation. Waiting.
Not for a resolution to the conflict itself, which may prove elusive, but for a shift in the conditions under which it is managed.
In that sense, the most consequential date in the current geopolitical calendar may not be tied to any battlefield development or diplomatic initiative. It may instead be circled months in advance, on a different kind of map entirely.
Election Day.