Donald Trump's latest walk across an airfield in North Dakota on Wednesday 2 July has ignited fresh speculation over his health, after video showed the president appearing to move unsteadily towards Marine One before flying on from a visit to Medora.
The renewed focus on Trump's mobility follows several months in which short video clips of his gait have circulated widely online, each time prompting the White House to insist there is nothing medically wrong with the president. The latest row began after footage from his trip to the new Theodore Roosevelt Presidential Library was posted on social media and framed as further evidence that something might be amiss.
