LONDON: A conversation is said to be taking place in Washington right now that almost nobody in power is willing to have publicly. It is whispered in corridors, traded among senior officials, and increasingly voiced by foreign policy analysts who have spent decades studying how American power actually functions. The question is simple, devastating, and urgent: “Is the President of the United States mentally fit to govern?” This is not a partisan attack dressed up as concern. It is a serious question that the moment demands, and the evidence demanding it comes not from opposition research or late-night commentary, but from the president’s own unfiltered, unmediated, middle-of-the-night output.
Consider what we have witnessed in recent weeks alone. Last Sunday Trump posted on social media an image of himself depicted as Christ. When the backlash arrived, he insisted he was merely dressed as a doctor, a deflection so transparent it insulted the intelligence of anyone paying attention. Rather than stepping back, Trump then posted an additional AI-generated religious image of Jesus embracing him, widely interpreted as doubling down rather than apologizing. He recently directed what can only be described as profane, unhinged public statements at foreign leaders, the kind of language that would end a career at any previous moment in American political history. He has also regularly posted apocalyptic warnings to sovereign nations in terms that a responsible communications team would never allow anywhere near a press release, let alone a presidential platform. Trump’s latest outburst was against the Chicago-born Pope Leo XIV, which stunned even the most hardened veterans of Culture War X. “Leo is WEAK on crime and terrible on foreign policy”, posted the convicted felon-president at 2.03 AM last Monday on Truth Social. “If I wasn’t in the White House, Leo wouldn’t be in the Vatican”, he added which, of course, is counter-factual. These are not the calculated provocations of a cunning disruptor. They have the texture of something more alarming: statements operating outside any coherent strategic logic, posted in the small hours, unfiltered and unreviewed.
Unlike the carefully managed public appearances that can be choreographed by presidential staff, Truth Social posts at 2 a.m. are, by all accounts, Donald Trump’s own. No speechwriter softens them. No chief of staff reviews them. They are a direct readout of the mind producing them, and what they reveal has moved from eccentric to genuinely worrying. Senior analysts who track political risk for a living are no longer describing Trump’s behaviour as mere populist theatre; they are using clinical language, with words like ‘unstable,’ ‘unhinged’ and ‘delusional’. And those conversations, once confined to think tanks and private dinners, have now become, as one observer put it, “the common currency in Washington.”
We have been here before, and recently. Joe Biden’s cognitive decline was one of the worst-kept secrets in the capital during the final stretch of his presidency. People who met with him privately came away shaken. Senior officials in his own administration confided that they barely saw the president, that real decisions were funnelled through a tight circle of handlers, including his wife and a handful of political loyalists. The White House denied everything, of course, calling it a smear while pointing to his schedule and his stamina. That was until the night of a single debate, which turned into a car crash. When the curtain fell, the country saw with its own eyes what insiders had been whispering for two years. The parallel with Woodrow Wilson immediately came to mind and is instructive. After Wilson suffered a severe stroke in 1919, his incapacitation was hidden from Congress and the public for months, with his wife Edith effectively managing the presidency from the shadows. In fact, America has a long, uncomfortable history of powerful people circling a weakened president, prioritizing their own access and influence over the public’s right to know. The instinct, when power is at stake, is always to conceal.
With Biden, concealment was possible because the man could be managed, his appearances scripted, his press exposure minimised, and his lapses explained away. Trump, however, presents a different and, in many ways, more dangerous problem. He cannot be hidden. He will not be handled. He posts. He calls into television programs. He speaks extemporaneously in ways that his staff visibly struggles to walk back before the day is out. If there is a cognitive or psychological deterioration underway, it is playing out in full public view, which is in one sense fortunate, as democracy requires visibility. In another sense Trump’s behaviour is terrifying, because it means that the unfiltered output of an unstable mind is shaping decisions affecting hundreds of millions of people.
The policy consequences of this are not theoretical. The administration’s trade confrontation with China was designed and executed by a handful of individuals with minimal relevant expertise: an economics PhD whose ideas, according to academics, were long dismissed by mainstream economists as fringe protectionism; a business associate elevated far beyond his competence; and a president who, by most serious assessments, has no functional understanding of how trade deficits actually work. China responded within days with counter-measures that made clear that the leverage the U.S. assumed it held was largely illusory. This tariff debacle did not reflect a sophisticated gambit that failed; it reflected an absence of serious thinking at the point of decision.
The same pattern has repeated itself across every major foreign policy theatre. The Ukraine war was going to be resolved in a phone call, China was going to fold, Iran was going to yield. In each case, the underlying assumptions—that American will, loudly expressed, would cause adversaries to capitulate—has collided with the reality of a multipolar world that no longer organises itself around Washington’s preferences. The tragedy is not simply that these assumptions were wrong; assumptions fail in every administration. The real tragedy is that the institutional capacity to correct them the experienced professionals; the interagency processes; the analytical culture that stress-tests ideas before they become policy; has been so thoroughly dismantled that there is almost no mechanism left to catch the errors before they compound.
And here we arrive at the most troubling dimension of this moment. In a functioning constitutional system, the answer to executive incapacity is clear. Congress acts. The Twenty-Fifth Amendment of America’s Constitution exists precisely for this contingency. Members of the president’s own party have not only the right but the serious obligation to exercise oversight when there are reasonable grounds to question the fitness of the commander-in-chief. That obligation is most clearly not being met. Republican members of Congress who have privately expressed alarm (and there are more than will admit it publicly) have calculated that the political cost of speaking is higher than the cost of silence. Donald Trump has demonstrated a consistent willingness to destroy the careers of members of his own party who cross him, so the result is institutional paralysis at the exact moment when institutional courage is most needed.
This is not simply a story about one man’s temperament or cognitive state. It is a story about what happens when the systems designed to manage human fallibility in high office are stripped away simultaneously. When you remove experienced professionals from senior positions and replace them with loyalists and party donors; when you centralise decision-making in a small circle of true believers; when you hollow out the agencies that provide institutional memory and analytical rigour; and when you add to that volatile mixture a president whose own behaviour is raising serious questions about stability, you have not just bad policy, you have a genuine crisis of governance. The American presidency was never designed to function as a one-man operation. It was designed with checks, balances, and the assumption that the humans occupying the office would themselves submit to constraints, such as institutional, legal, and temperamental. When even one of those assumptions breaks down, the system strains. When several break down at once, it begins to fall apart.
The question of Trump’s mental fitness deserves a serious and honest national conversation. One that doesn’t get shouted down as partisan, or one that doesn’t require waiting for a debt-stage collapse before the obvious is acknowledged. That conversation is already happening privately. But the country urgently deserves to have it publicly with evidence increasingly suggesting that Donald Trump is not mentally fit for the White House.
John Dobson is a former British diplomat, who also worked in UK Prime Minister John Major’s office between 1995 and 1998. He is currently a visiting fellow at the University of Plymouth.
