I’ll admit it plainly: watching the current President of the United States, I’ve more than once found myself wondering whether we are looking at a question not just of politics, but of mental capacity. Some statements and behaviours feel so exaggerated, so disconnected from what one expects of a head of state, that the comparison with history’s more troubled rulers comes almost uninvited.

History does, after all, give us striking examples. In Britain, George III’s periods of incapacity led to power being transferred to the Prince Regent, effectively sidelining the monarch while preserving the system. In Bavaria, Ludwig II of Bavaria—patron of Wagner and builder of fantastical castles—was declared unfit to rule and removed by his ministers. Across Europe, there are echoes of similar moments, reminders that leadership and mental stability have not always gone hand in hand.
Faced with such precedents, it is tempting to ask: are we seeing something similar today?
And yet, that conclusion—tempting as it is—demands caution.
It is one thing to feel that a leader’s words are inappropriate, erratic, or even absurd. It is quite another to claim mental illness. In modern public life, exaggeration, provocation, and theatrical self-presentation are often part of the performance. What appears irrational may in fact be deliberate—a way of dominating attention or appealing to a particular audience. Without direct medical evidence, declaring a leader “unwell” risks becoming more an expression of frustration than a serious diagnosis.
From my own perspective, living here in Italy, this tension has become even more striking. I do not generally agree with the politics of Giorgia Meloni. And yet, on the recent remarks directed toward the head of the Catholic Church—Pope Francis—I find myself entirely in agreement with her condemnation. Whatever one’s politics, there are moments when basic respect matters.
What makes the situation more troubling is that it does not seem to end there. The tone has extended beyond the Pope to include remarks about Meloni herself. She is someone who publicly identifies as a woman, an Italian, a mother, and a Catholic—though not especially devout—and she has clearly taken offence. In doing so, she has also highlighted something broader: the risk of alienating not just opponents, but allies. As someone who is a permanent resident of Italy and one who is not infatuated by her politics I, for once am fully with her on this one
And that raises a more practical question. Quite apart from debates about mental capacity, what happens when a leader’s style consistently strains relationships? International politics depends not only on power, but on trust, cooperation, and a degree of mutual respect. If those begin to erode, the consequences may be felt far beyond any single remark.
Moreover, the historical comparisons only go so far. Monarchs like George III or Ludwig II could be quietly sidelined through regencies or court decisions. Modern democracies are structured very differently. There is no simple mechanism to “retire” a leader for perceived incapacity. Instead, systems rely on elections, legal processes, and constitutional safeguards. These mechanisms can feel slow, even inadequate, but they exist precisely to prevent subjective judgments—however strongly felt—from becoming decisive.
That said, the concern itself is not trivial. The pressures of high office are immense, and they can magnify traits that, in another context, might be less visible. When behaviour begins to feel consistently extreme, it is understandable that people start to question not just judgment, but capacity.
The difficulty is that in a polarized climate, those questions quickly harden into certainty. What begins as unease—“Is something wrong here?”—can turn into conviction: “There must be.” At that point, the line between observation and interpretation becomes blurred.
In the end, we are left in an uncomfortable position. It is entirely reasonable to feel that something is off—that the tone, the claims, and the manner of speaking do not match the gravity of the office, and that relationships—even with traditional allies—may be fraying. But translating that feeling into a medical conclusion, or a call for removal on health grounds, goes beyond what can responsibly be known from the outside.
So perhaps the more grounded position is this: we may question judgment, we may criticise behaviour, and we may worry about the diplomatic consequences—but the question of mental capacity, however strongly it presses itself upon us, remains one that cannot be settled by observation alone. And in a democracy, it is not that question, but the functioning of institutions, that ultimately determines what happens next.