FILE - In this Jan. 7, 2013 file photo, President Barack Obama, left, and former U.S. Sen. Chuck Hagel, R-Neb., walk past each other during a new conference in the East Room of the Whit

 

              FILE - In this Jan. 7, 2013 file photo, President Barack Obama, left, and former U.S. Sen. Chuck Hagel, R-Neb., walk past each other during a new conference in the East Room of the Whit
FILE - In this Jan. 7, 2013 file photo, President Barack Obama, left, and former U.S. Sen. Chuck Hagel, R-Neb., walk past each other during a new conference in the East Room of the White House in Washington, to announce that he is nominating Hagel, as the new Defense Secretary. Senate Republicans' reservations about Hagel heading the Pentagon is caught up in potent politics, from a proxy fight over President Barack Obama to more parochial concerns about nuclear weapons works. (AP Photo/Carolyn Kaster, File)