President Joe Biden is ailing on the world stage, prompting serious concerns over his ability to lead the United States. The oldest president in history is hoping to beat his own record if re-elected in 2024, finishing his second term in 2028 at the age of 86 years old. Mr Biden has faced serious health issues in the past that could be playing a factor in his public decline. Sky News Digital Originals presents this report from host James Morrow.