TOPSHOT - People listen as Democratic presidential nominee Hillary Clinton speaks during the Congressional Hispanic Caucus Gala September 15, 2016 in Washington. Hillary Clinton returned Thursday to the campaign fray in a tightening race against Republican Donald Trump, who released new details of his physical fitness in response to the health scare that sidelined his rival. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images