I don’t know which AI you used but I asked Chat GPT “Is Donald Trump’s physical and mental health now better or worse than Joe Biden’s was in the final months of his Presidency” and got this answer, which is significantly more nuanced than the one you provided:-
“If by “now” you mean September 2026, and by Biden you mean the last few months of his presidency (roughly autumn 2024–January 2025), my assessment would be:
Trump appears physically somewhat better than Biden was then, but the difference is less clear-cut than the political rhetoric suggests. Mentally/cognitively, Trump currently looks better on the available objective medical evidence — but there are enough recent observations to make that conclusion less secure than it was a year ago.
Physical health
Trump has the advantage.
At his May 2026 Walter Reed examination, Trump’s physician reported strong cardiac, pulmonary, neurological and general physical function. His weight was 238 lb at 6’3” (BMI 29.7), and his cholesterol had improved with medication. He does, however, have chronic venous insufficiency, causing some leg swelling, and doctors advised weight loss and more exercise.
Biden’s February 2024 examination, while officially described as showing him fit for duty, documented atrial fibrillation, sleep apnoea requiring CPAP, sensory peripheral neuropathy, spinal arthritis and a stiff gait. By the latter part of 2024 he also visibly had considerable difficulty walking and appeared physically frailer.
So, on conventional physical-health measures, I’d put present-day Trump ahead of late-presidency Biden.
There is one important caveat: Biden’s subsequent diagnosis of aggressive prostate cancer with bone metastases was announced only after he left office in 2025. We shouldn’t retrospectively assume that this was necessarily affecting his functioning in late 2024, because we don’t know when it became clinically significant.
Cognitive/mental health
This is more interesting.
Trump’s formal medical evidence is substantially better than Biden’s was near the end of his presidency. Trump’s 2026 examination included a neurological examination and cognitive screening, with a reported 30/30 MoCA score and normal mental status. His 2025 examination had produced the same 30/30 result.
Biden, by contrast, never had a publicly reported formal cognitive test. His doctors repeatedly said that his neurological examinations were reassuring and that he was fit for duty. But the concern wasn’t based simply on a lack of testing: his public performances in 2024 showed conspicuous problems with word retrieval, losing his train of thought, confusion and occasionally apparent disorientation. These became sufficiently serious that Biden abandoned his re-election campaign in July 2024.
But there’s an important qualification concerning Trump.
A 30/30 MoCA does not establish that someone has excellent executive functioning or is generally cognitively superior. It is a screening test for cognitive impairment, not an IQ test and not a comprehensive assessment of the ability to make complex decisions. Specialists have specifically cautioned against treating it as proof of presidential fitness.
And in August 2026, there have been increasingly noticeable reports of Trump appearing to fall asleep during public events, alongside verbal slips and apparent memory lapses. Those observations don’t establish dementia or another diagnosis, but they do make it harder to say confidently that his cognition is unquestionably excellent.
My overall judgement
If I had to make a straight comparison, rather than hiding behind “we can’t know”:
| Trump now | Biden late 2024 |
| Physical robustness | Better | Worse |
| Mobility/stamina | Better | Worse |
| Cardiovascular health | Probably better | More medical problems |
| Formal cognitive testing | Much better evidence | No formal test disclosed |
| Observable cognitive performance | Better overall, but increasingly concerning | Clearly concerning |
| Evidence of dementia | None established | None established |
| Overall fitness for demanding presidential duties | Probably better | Probably wors |
So I would say Trump is currently in better physical and cognitive condition than Biden appeared to be during the final months of Biden’s presidency.
However, I wouldn’t say Trump is currently in “excellent mental health” with the same confidence that the White House physician does. At 80, his increasing episodes of apparent sleepiness and verbal/cognitive errors deserve attention, particularly because the standard MoCA test is not capable of ruling out every form of age-related cognitive decline.
And there’s an important irony here: the gap between them may be considerably smaller today than it was during the 2024 campaign. Trump’s age-related changes are now becoming much more visible, whereas Biden’s decline had already become quite pronounced by mid-to-late 2024.”
My own view being this relies far too much on the data provided by the White House, which under Trump has become an unapologetic propaganda machine. It cannot be trusted. I prefer to use the evidence of my own eyes.