President Barack Obama signs the certification stating the statutory requirements for repeal of ‘don’t ask, don’t tell’ have been met, in the Oval Office on Friday. Pictured, from left, are Brian Bond, deputy director of the Office of Public Engagement; Kathleen Hartnett, associate counsel to the president; Secretary of Defense Leon Panetta; Kathryn Ruemmler, counsel to the president; Chairman of the Joint Chiefs of Staff Adm. Mike Mullen; and Vice President Joe Biden. (Official White House Photo by Pete Souza/via Rex Wockner)