Supporters of Democratic presidential candidate Hillary Clinton arrive to attend a primary night event during Pennsylvania's primary election on April 26, 2016 in Philadelphia. (Credit: EDUARDO MUNOZ/AFP/Getty Images)
Hillary Clinton In Philadelphia
Supporters of Democratic presidential candidate Hillary Clinton arrive to attend a primary night event during Pennsylvania's primary election on April 26, 2016 in Philadelphia. (Credit: EDUARDO MUNOZ/AFP/Getty Images)
Hillary Clinton In Philadelphia
Supporters of Democratic presidential candidate Hillary Clinton arrive to attend a primary night event during Pennsylvania's primary election on April 26, 2016 in Philadelphia. (Credit: EDUARDO MUNOZ/AFP/Getty Images)
Hillary Clinton In Philadelphia
Supporters of Democratic presidential candidate Hillary Clinton react to early projections at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Supporters of Democratic presidential candidate Hillary Clinton react to early projections at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Supporters of Democratic presidential candidate Hillary Clinton react to early projections at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate Hillary Clinton arrives with her husband former President Bill Clinton at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate Hillary Clinton delivers remarks at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate and former U.S. Secretary of State Hillary Clinton arrives with her husband former President Bill Clinton at a primary night campaign event April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate Hillary Clinton embraces her husband, former President Bill Clinton, at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate and former U.S. Secretary of State Hillary Clinton embraces her husband, former President Bill Clinton, at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate and former U.S. Secretary of State Hillary Clinton delivers remarks at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate and former U.S. Secretary of State Hillary Clinton delivers remarks at a primary night campaign event April 26, 2016 in Philadelphia. (Photo by Win McNamee/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Philadelphia
Democratic presidential candidate former Secretary of State Hillary Clinton speaks during her primary night gathering at the Philadelphia Convention Center on April 26, 2016 in Philadelphia, Pennsylvania. (Photo by Justin Sullivan/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Phil
Democratic presidential candidate Hillary Clinton greets supporters during a primary night event on April 26, 2016 in Philadelphia after winning the Pennsylvania state primary. (Credit: EDUARDO MUNOZ ALVAREZ/AFP/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Phil
Democratic presidential candidate Hillary Clinton and husband, former US president Bill Cinton greet supporters during a primary night event on April 26, 2016 in Philadelphia after winning the Pennsylvania state primary.
(Credit: EDUARDO MUNOZ ALVAREZ/AFP/Getty Images)
Hillary Clinton Holds Pennsylvania Primary Night Event In Phil
Democratic presidential candidate Hillary Clinton and husband, former US president Bill Cinton greet supporters during a primary night event on April 26, 2016 in Philadelphia after winning the Pennsylvania state primary.
(Credit: EDUARDO MUNOZ ALVAREZ/AFP/Getty Images)
