John Kerry

In this Dec. 20, 2012 file photo, Senate Foreign Relations Chairman John Kerry, D-Mass., leads a hearing on the attack on the U.S. consulate in Benghazi, Libya, where the ambassador three other Americans were killed Sept. 11, on Capitol Hill in Washington. President Barack Obama on Friday will nominate Sen. John Kerry as his next secretary of state, a senior administration official says, making the first move in a sweeping overhaul of his national security team heading into a second term. (AP Photo/J. Scott Applewhite)