Democratic presidential nominee Hillary Clinton's abrupt departure from the Sept. 11 commemoration ceremony in downtown Manhattan Sunday morning came as a result of dehydration caused by pneumonia, said her Mount Kisco-based personal physician late Sunday afternoon.
"Secretary Clinton has been experiencing a cough related to allergies. On Friday, during follow up evaluation of her prolonged cough, she was diagnosed with pneumonia," said Lisa Bardack, the Director of Internal Medicine of CareMount Medical said in a statement released shortly after 5 p.m. "She was put on antibiotics, and advised to rest and modify her schedule.
"While at this morning's event, she became overheated and dehydrated. I have just examined her and she is now re-hydrated and recovering nicely."
Clinton was seen being assisted by an aide and Secret Service agent as she entered her SUV while departing the ceremony, at which point she briefly stumbled with her right leg trembling before entering the vehicle.
"Secretary Clinton attended the Sept. 11th commemoration ceremony for just an hour and thirty minutes this morning to pay her respects and greet some of the families of the fallen," Clinton campaign spokesman Nick Merrill. "During the ceremony, she felt overheated so departed to go to her daughter's apartment, and is feeling much better."
Just before noon, Clinton left her daughter's apartment, waving to onlookers and media and saying "It's a beautiful day." She then greeted a young girl who approached her before entering her SUV on her way back to her home in Chappaqua, where husband and former President Bill Clinton was awaiting her return.
Clinton, who will turn 69 in October, arrived in downtown Manhattan at around 8:30 a.m., and was greeted by several political officials.
Clinton was stationed in the front row at the ceremony, which included U.S. senators Chuck Schumer and Kirsten Gillibrand, New York Gov. Andrew Cuomo, New York City Mayor Bill de Blasio, former mayors Michael Bloomberg and Rudolph Giuliani and Republican presidential nominee Donald Trump, who was at the opposite end of the row from Clinton.
It is unclear if Clinton will proceed with a West Coast swing starting Monday that is scheduled to include stops in Los Angeles and San Francisco.