Democratic presidential candidate Hillary Clinton and Former President Bill Clinton move to the stage at her presidential primary election night rally

Democratic presidential candidate Hillary Clinton and Former President Bill Clinton move to the stage at her presidential primary election night rally, Tuesday, April 26, 2016, in Philadelphia. (AP Photo/Matt Rourke)

Democratic presidential candidate Hillary Clinton and Former President Bill Clinton move to the stage at her presidential primary election night rally, Tuesday, April 26, 2016, in Philadelphia. (AP Photo/Matt Rourke)