But surprisingly she left before the memorial service started.
Fox News' Rick Leventhal says that while waiting for her motorcade to take her away, "A law enforcement source" who was 15 feet away from Clinton told him, "She stumbled off the curb, appeared to faint, lost one of her shoes--it wound up beneath the van--her protective detail, I'm told, helped into into her van. And then the van took off, presumably in the direction of a hospital."
The shoe was picked up and placed into another vehicle.
This is not the Cinderella story the Democrats want.
The campaign says that Clinton was "overheated" and that she was dispatched to her daughter's apartment, although two hours after her reported fainting incident, it is only 79 degrees in New York.
This is the second time in less than a week that Clinton's health problems have been exposed.
Donald Trump is at the Ground Zero ceremony.
UPDATE 11:20am CDT: New video has surfaced--what HRC's knees buckle and apparently tumble into her van.
Not healthy enough to serve: Hillary suffers two coughing fits today