As Donald Trump approaches his 80th birthday, persistent questions about his physical health and mental acuity continue to be raised.

<img alt="Donald Trump points to his left hand as he stands in the aisle of an airplane." height="349" src="https://i.cbc.ca/ais/1dcc2ceb-2e66-480d-9d72-061936becb87,1779988125632/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C13%2C6000%2C3375%29%3BResize%3D%28620%29" title="U.S. President Donald Trump discuses the bruising on his hand with reporters aboard Air Force One after leaving the World Economic Forum in Davos on Jan. 22, 2026." width="620" /><p>U.S. President Donald Trump celebrates his...