希拉里·克林顿的健康成为政治问题

In the US, Democratic presidential candidate Hillary Clinton's health has become a heated topic in the media. Clinton left the 9-11 ceremony early, feeling unwell.

Many question whether she's healthy enough for the White House. They include her Republican rival Donald Trump and his supporters.

Take a close look at this video shot on Sunday...U.S. Presidential candidate, Hillary Clinton, is about to enter a vehicle after a September 11th ceremony in New York City.

She hesitates - then crumples - then leans on her aides...who help her into the van.

Clinton's campaign told reporters she was, quote, "overheated"-only to later release a doctor's note, saying she had been diagnosed with pneumonia two days earlier.

In a statement, Clinton's doctor said: "She was put on antibiotics and advised to rest and modify her schedule."

When Clinton had this coughing fit on the campaign trail just over a week ago, her opponent, Donald Trump, questioned whether she was healthy enough to be president.

This time, he wished her well, but...

"I think it's an issue. In fact, this week I took...this last week I took a physical and I'll be releasing when the numbers come in. Hopefully they're going to be good," Trump said.

Many presidents have been less than candid about their health.

Though voters knew that polio had paralyzed President Franklin Delano Roosevelt, many didn't know he couldn't walk. The press didn't take pictures of him in a wheelchair.

Americans also knew John F. Kennedy had back trouble, but he never disclosed he had Addison's disease-a disorder of the adrenal glands.

Now the Clinton campaign is promising to release more details about her health in the coming days.

"We've been in touch with her this morning and it is our intention in the next couple days we'll release additional medical information about Hillary Clinton," said Brian Fallon, Clinton Spokesperson.

"I think in retrospect we could have handled it better, in terms of providing more information more quickly."

She is finally taking a break, cancelling an appearance in California Monday. Clinton's running mate, Tim Kaine, says Hillary Clinton's "energy staggers" him.