U.S. Secretary of Defense <a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Chuck+Hagel&family=editorial&specificpeople=504963 ng-click='$event.stopPropagation()'>Chuck Hagel</a> (C) speaks as President <a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Barack+Obama&family=editorial&specificpeople=203260 ng-click='$event.stopPropagation()'>Barack Obama</a> (L) and Vice President Joe Biden look on during a press conference announcing Hagel's resignation in the State Dining Room of the White House November 24, 2014 in Washington, DC. Sources say Hagel plans to remain in office until his successor is confirmed by the Senate.