NEWSDay 3 of the Democratic ConventionPresident Barack Obama waves with Democratic presidential nominee Hillary Clinton after she joined him on stage during the third night of the Democratic National Convention at the Wells Fargo Center in Philadelphia, July 27, 2016.Nicholas Kamm, Getty ImagesPresident Barack Obama is joined by Democratic presidential candidate Hillary Clinton after his address to the Democratic National Convention at the Wells Fargo Center in Philadelphia.Mandel Ngan, Getty ImagesPresident Barack Obama and Democratic presidential candidate Hillary Clinton wave to the crowd on the third day of the Democratic National Convention.Chip Somodevilla, Getty ImagesDemocratic presidential candidate Hillary Clinton arrives on stage after President Barack Obama delivered a speech on the third day of the Democratic National Convention at the Wells Fargo Center, July 27, 2016 in Philadelphia. Democratic presidential candidate Hillary Clinton received the number of votes needed to secure the party's nomination. An estimated 50,000 people are expected in Philadelphia, including hundreds of protesters and members of the media. The four-day Democratic National Convention kicked off July 25.Alex Wong, Getty ImagesPresident Barack Obama speaks during the third day of the Democratic National Convention in Philadelphia, Wednesday, July 27, 2016.Mark J. Terrill, APPresident Barack Obama acknowledges the crowd as he arrives on stage to deliver remarks on the third day of the Democratic National Convention at the Wells Fargo Center.Drew Angerer, Getty ImagesPresident Barack Obama acknowledges the crowd as he arrives on stage to deliver his speech.Joe Raedle, Getty ImagesPresident Barack Obama delivers remarks on the third day of the Democratic National Convention.Drew Angerer, Getty ImagesPresident Barack Obama addresses the Democratic National Convention at the Wells Fargo Center in Philadelphia, July 27, 2016.Nicholas Kamm, Getty ImagesPresident Barack Obama speaks during the third day session of the Democratic National Convention.Carolyn Kaster, APDemocratic nominee for Vice President Tim Kaine addresses the Democratic National Convention.Nicholas Kamm, Getty ImagesDemocratic vice presidential candidate, Sen. Tim Kaine, D-Va., waves as he walks on the stage.J. Scott Applewhite, APVice Presidential nominee Tim Kaine delivers speaks on the third day of the Democratic National Convention.Jessica Kourkounis, Getty ImagesDemocratic vice presidential candidate Tim Kaine and wife Anne Holton acknowledge the audience after his speech.Timothy A. Clary, Getty ImagesVice President Joe Biden and his wife, Dr. Jill Biden, wave to the crowd after delivering remarks on the third day of the Democratic National Convention.Drew Angerer, Getty ImagesVice President Joe Biden speaks during the third day session of the Democratic National Convention in Philadelphia.Carolyn Kaster, APVice-President Joe Biden embraces wife Dr. Jill Biden after addressing delegates on Day 3 of the Democratic National Convention.Brendan Smialowski, Getty ImagesVice President Joe Biden hugs his wife Dr. Jill Biden after speaking during the third day of the Democratic National Convention in Philadelphia.Mark J. Terrill, APVice President nominee Tim Kaine acknowledges the crowd on the third day of the Democratic National Convention.Aaron P. Bernstein, Getty ImagesGabrielle Giffords, with husband Mark Kelly, speaks during the third day of the Democratic National Convention.Dvid Maialetti TNSFelicia Sanders, rightm and Polly Sheppard, two of the three survivors of the Mother Emanuel Church shooting in Charleston, S.C., walk off the stage on the third evening session of the Democratic National Convention at the Wells Fargo Center in Philadelphia, Pennsylvania, July 27, 2016.Nicholas Kamm, Getty ImagesAudience members hold hands and sing as Broadway performers sing, "What the World Needs Now," during the third day of the Democratic National Convention.Jessica Griffin, TNSA child holds a banner at a Bernie Sanders event near City Hall on day three of the Democratic National Convention.Jeff J Mitchell, Getty ImagesFormer New York Mayor Michael Bloomberg, a political independent, speaks during the third day of the Democratic National Convention.Paul Sancya, APFormer New York City Mayor Michael Bloomberg gestures to attendees after delivering remarks on the third day of the Democratic National Convention.Joe Raedle, Getty ImagesFormer president Bill Clinton cheers as former New York City mayor Michael Bloomberg addresses the convention.Saul Loeb, Getty ImagesActivists protest as former Defense Secretary Leon Panetta speaks during the third day of the Democratic National Convention.Paul Sancya, APMembers of Congressional Black Caucus Reps. John Lewis, D-Ga., left, Charles B. Rangel, D-N.Y., and John Conyers, D-Detroit, applaud from the stage during the third day of the Democratic National Convention.Carolyn Kaster, APCongressional Black Caucus Chairman Rep. G. K. Butterfield, D-N.C., stands with members of the caucus as he speaks during the third day of the Democratic National Convention in Philadelphia.Mark J. Terrill, APVirginia delegates cheer as Democratic vice presidential candidate, Sen. Tim Kaine, D-Va., officially become the vice presidential nominee during the third day session of the Democratic National Convention in Philadelphia, Wednesday, July 27, 2016.John Locher, APFlint Mayor Karen Weaver arrives to speak on Day Three of the Democratic National Convention.Saul Loev, Getty ImagesDetroit Mayor Mike Duggan waves after his address on the third day of the Democratic National Convention.Paul Sancya, APBernie Sanders supporters hold up signs during the third day of the Democratic National Convention.Robyn Beck, Getty ImagesAlabama delegates cheer during the third day session of the Democratic National Convention.Matt Rourke, APA woman wears earrings featuring President Barack Obama and first lady Michelle Obama.Robyn Beck, Getty ImagesActor and activist Danny Glover joins supporters of Bernie Sanders delegate Nina Turner for a protest inside the media tent on Wednesday.Michael R. Sisak, APDelegates cheer on the third day of the Democratic National Convention.Robyn Beck, Getty ImagesFormer Maryland Gov. Martin O'Malley arrives to speak during Day 3 of the Democratic National Convention.Saul Loeb, Getty ImagesA Hillary Clinton supporter looks on during Day 3 of the Democratic National Convention.Robyn Beck, Getty ImagesDelegates cheer during the Democratic National Convention.Robyn Beck, Getty ImagesU.S. Senate Minority Leader Harry Reid, D-Nev., delivers remarks on the third day of the Democratic National Convention.Aaron P. Bernstein, Getty ImagesSenate Democratic Leader Harry Reid of Nevada and his wife, Landra, leave the stage on Day 3 of the Democratic National Convention at the Wells Fargo Center in Philadelphia on July 27, 2016.Nicholas Kamm, Getty ImagesDelegate Chris Davis of Centennial, Colo., a supporter of Bernie Sanders, speaks with Sen. Wesley Bishop of New Orleans, a Hillary Clinton supporter, on the floor about super delegates on the third day of the Democratic National Convention.Chip Somodevilla, Getty Images