Donald Trump, 79, appeared to struggle on a staircase during a state visit to Beijing, where Chinese President Xi Jinping was filmed briefly steadying him with a hand on his back as the two leaders walked into a summit venue on Wednesday, according to footage circulating online and witness accounts.

The news came after weeks ofmounting questions in Washington over Trump's fitness for office, with critics branding him 'unfit to serve' and alleging he had nodded off during an Oval Office briefing. Nothing has been independently verified about Trump's underlying health, and there has been no formal medical update from the White House.

Trump is in Beijing for a three-day summit with Xi Jinping, billed as an attempt to stabilise relations between the world's two largest economies. The agenda is heavy, even by diplomatic standards, with Taiwan, trade tensions and the Middle East all on the table.

It was during one of the more ceremonial moments of the visit that cameras picked up something less scripted. As the two men approached a staircase leading into the summit venue in the Chinese capital, Trump appeared to slow and then falter as he climbed.

China's President Xi Jinping appeared to recognize that Donald Trump was struggling to climb the stairs as the pair suddenly paused, with numerous onlookers suggesting it was to give Trump a moment to recover.https://t.co/BXwgwVxLh6pic.twitter.com/gnSSZsyTrR

Observers quoted around the footage said the pair came to what looked like an unscheduled halt, apparently allowing the US president a moment to gather himself before proceeding.

In the clip, Xi can be seen placing his hand lightly on Trump's back while they ascend the steps. The gesture is perfectly plausible as basic politeness. Given the recent swirl of health speculation around a 79‑year‑old commander in chief, it is also being read by some as discreet assistance.

Those watching noted that Trump appeared tired as he climbed and did not manage the stairs in one smooth attempt. The sequence is brief, the sort of thing that would usually pass without comment. But in an era when every frame is dissected, it has fed into a broader narrative about age, stamina and whether the president can comfortably keep pace with the demands of the job.

To recall, the Beijing footage lands on top of another uncomfortable video for the White House. Last weekend, Trump was described by critics as 'unfit to serve' after a clip emerged from an Oval Office health briefing in which he sat with his eyes closed and barely moved for an extended stretch. Detractors seized on the moment as proof he was 'falling asleep' in a meeting on a core policy area.

There has been no detailed medical rebuttal of those claims. Officials have not supplied a fresh doctor's note nor any clinical explanation, leaving the public to interpret short clips without context. That is a shaky way to judge anyone's wellbeing, let alone that of a sitting president, but it is how political argument often plays out now.

Source: International Business Times UK