Democratic presidential nominee Hillary Clinton speaks during the National Association of Black Journalists(NABJ) and National Association of Hispanic Journalists(NAHJ) joint convention in Washington, DC, August 5, 2016. / AFP PHOTO / SAUL LOEBSAUL LOEB/AFP/Getty Images

Democratic presidential nominee Hillary Clinton speaks during the National Association of Black Journalists(NABJ) and National Association of Hispanic Journalists(NAHJ) joint convention in Washington, DC, August 5, 2016. / AFP PHOTO / SAUL LOEBSAUL LOEB/AFP/Getty Images

Democratic presidential nominee Hillary Clinton speaks during the National Association of Black Journalists(NABJ) and National Association of Hispanic Journalists(NAHJ) joint convention in Washington, DC, August 5, 2016. / AFP PHOTO / SAUL LOEBSAUL LOEB/AFP/Getty Images

Democratic presidential nominee Hillary Clinton speaks during the National Association of Black Journalists(NABJ) and National Association of Hispanic Journalists(NAHJ) joint convention in Washington, DC, August 5, 2016. / AFP PHOTO / SAUL LOEBSAUL LOEB/AFP/Getty Images

(FILES) This file photo taken on November 28, 2012 shows former acting CIA Director Michael Morell in the Senate Visitors Center of the US Capitol in Washington, DC. A former top CIA official emphatically endorsed Hillary Clinton for president on August 5, 2016, calling Donald Trump an "unwitting agent" of Russian President Vladimir Putin."Mr. Putin played upon Mr. Trumps vulnerabilities by complimenting him," wrote former CIA deputy director Michael Morell in a New York Times op-ed. "In the intelligence business, we would say that Mr. Putin had recruited Mr. Trump as an unwitting agent of the Russian Federation." / AFP PHOTO / MANDEL NGANMANDEL NGAN/AFP/Getty Images

People wait outside as US President Barack Obama has a birthday dinner at Fiola Mare August 4, 2016 in Washington, DC. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

Former Secretary of Health and Human Services Kathleen Sebelius (3L) waits with others as they are held back by Secret Service as US President Barack Obama has a birthday dinner at Fiola Mare August 4, 2016 in Washington, DC. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images

Former Secretary of Health and Human Services Kathleen Sebelius (R) waits with others as they are held back by Secret Service as US President Barack Obama has a birthday dinner at Fiola Mare August 4, 2016 in Washington, DC. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images