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Hilary Clinton’s health

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Hillary Clinton's team has revealed that she is suffering from "walking pneumonia", after she was seen staggering while attending the 9/11 memorial ceremony on Sunday.

Republican presidential candidate Donald Trump, 70, has on several occasions attempted to draw attention to the 68-year-old former secretary of state's health.

BBC News looks at how Mrs Clinton's illness might affect the race for the White House.

Go to next video: Hillary Clinton staggers out of 9/11 event