President Barack Obama Campaigns With Presumptive Democratic Presidential Nominee Hillary Clinton

A U.S. Secret Service agent adjusts the Presidential Seal on a podium during a campaign rally for Hillary Clinton, presumptive 2016 Democratic presidential nominee, not pictured, and U.S. President Barack Obama, not pictured, at the Charlotte Convention Center in Charlotte, North Carolina, U.S., on Tuesday, July 5, 2016. Clintons path to the White House relies on reassembling the winning Obama coalition of minority voters and women, but her campaign is vying for a demographic long out of reach for Democrats -- college-educated whites -- that could reshape the map of U.S. swing states this year. Photographer: Andrew Harrer/Bloomberg via Getty Images