Democratic presidential nominee Hillary Clinton hugs President Barack Obama as she arrives onstage at the end of his speech on the third night of the 2016 Democratic National Convention in Philadelphia, Pennsylvania, on July 27, 2016. #

A supporter of U.S. Senator Bernie Sanders cools off in water from a water hydrant as she takes part in a protest march ahead of the 2016 Democratic National Convention in Philadelphia, Pennsylvania on July 24, 2016. #

Hillary Clinton campaign staffer Liz Hart reacts as fellow campaign staffer Andrew Binns proposes on stage at the Wells Fargo Center the day before the Democratic National Convention in Philadelphia, Pennsylvania, U.S. July 24, 2016. #

Baltimore Mayor Stephanie Rawlings-Blake bangs the gavel calling to order the first day of the Democratic National Convention at the Wells Fargo Center, July 25, 2016 in Philadelphia, Pennsylvania. #

Supporters of Bernie Sanders hold up posters at a 'Black Men For Bernie' rally to gain support for third party candidates and protest the DNC on July 27, 2016 in Philadelphia. #

Comedian Stephen Colbert tries to make his way to the podium on the Democratic National Convention stage inside the Wells Fargo Center on July 24, 2016, as preparations continued for the start of the convention. #

Supporters of Sen. Bernie Sanders stand and cheer as he delivers remarks on the first day of the Democratic National Convention at the Wells Fargo Center on July 25, 2016. #

Louisiana delegate Rodney McFarland wears an elaborate hat as he talks to others on the floor of the convention on the third night in Philadelphia, on July 27, 2016. #

Christine Leinonen, whose son was killed in the Pulse attack in Orlando, is embraced by attack survivors Brandon Wolf (L) and Jose Arraigada (R) on the third day of the Democratic National Convention, on July 27, 2016. #

A supporter of former Democratic U.S. presidential candidate Bernie Sanders wears tape across her mouth in protest on the floor at the Democratic National Convention on July 25, 2016. #

President Barack Obama and Democratic Presidential nominee Hillary Clinton wave to the DNC crowd at the Wells Fargo Center on July 27, 2016, in Philadelphia, Pennsylvania. #