President Barack Obama hugs Democratic Presidential candidate Hillary Clinton during the Democratic National Convention in Philadelphia, Wednesday, July 27, 2016.
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., talks on the phone aboard her campaign plane at Youngstown Airport in Vienna, Ohio, Thursday, Feb. 14, 2008.
Ethan Jennings, 16 months, grabs a cardboard cutout of Democratic Presidential candidate Hillary Clinton as his father, Florida delegate Bernard Jennings, holds him during the Democratic National Convention in Philadelphia, Tuesday, July 26, 2016.
Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., greets supporters at Bristol Senior High School in Bristol, Pa., Monday, April 14, 2008.
Democratic presidential candidate Hillary Clinton sings during a service at Mount Zion Fellowship Church in Highland Hills, Ohio., Sunday, March 13, 2016.
Democratic presidential candidate Hillary Clinton and Vice President Joe Biden on the tarmac at Wilkes-Barre/Scranton International Airport, in Avoca, Pa., Monday, Aug. 15, 2016.
Democratic presidential nominee Hillary Clinton on stage at the final day of the Democratic National Convention in Philadelphia, Thursday, July 28, 2016.
Former President Bill Clinton after his wife, Democratic presidential nominee Hillary Clinton, spoke during the final day of the Democratic National Convention, Thursday, July 28, 2016, in Philadelphia.
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., talks with media on her campaign plane at Boston Logan International Airport, Sunday, Feb. 24, 2008.
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., toasts with Hammond, Ind., Mayor Tom McDermott, left, at Bronko's Restaurant in Crown Point, Ind., Saturday, April 12, 2008.
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., eyes her shot of Crown Royal at Bronko's Restaurant with owner Nick Tarailo in Crown Point, Ind., on Saturday, April 12, 2008.
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., winks to the crowd at a campaign stop at Millersville University in Millersville, Pa., Tuesday, March 18, 2008.
Democratic presidential candidate Hillary Clinton and Vice President Joe Biden greet people during a campaign event at Riverfront Sports in Scranton, Pa., Monday, Aug. 15, 2016.
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., greets people during a campaign rally at McAllen Convention Center in McAllen, Texas., Wednesday, Feb. 13, 2008.
Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., supporter Paula Frial listens to her speak at a rally at Pier 30 in Seattle, Wa., Thursday, Feb. 7, 2008.
Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., is illuminated during a campaign stop at Revello's Cafe Pizzeria in Old Forge, Pa., Monday, March 10, 2008.