U.S. President <a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Bill+Clinton&family=editorial&specificpeople=67203 ng-click='$event.stopPropagation()'>Bill Clinton</a> shakes hands with <a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Jack+Ma&family=editorial&specificpeople=2110288 ng-click='$event.stopPropagation()'>Jack Ma</a>, Executive Chairman of Alibaba Group, during the closing session of the Clinton Global Initiative 2015 on September 29, 2015 in New York City.