An ill Hillary Clinton abruptly left a 9/11 anniversary ceremony Sunday and needed to be held up by three people before she appeared to stumble off a curb and was helped into a van. Several hours later, her campaign revealed she had been diagnosed with pneumonia on Friday and advised to rest.
Less than two months from Election Day, it was an unwanted visual for Clinton as she tries to project the strength and vigor needed for one of the world's most demanding jobs. Republican rival Donald Trump has spent months questioning Clinton's health, saying she lacks the stamina to be president.
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