File photo of U.S. Senator Kerry reacting before addressing final session of Democratic National Convention in Charlotte

 
File photo of U.S. Senator Kerry reacting before addressing final session of Democratic National Convention in Charlotte
U.S. Senator John Kerry (D-MA) reacts before addressing the final session of the Democratic National Convention in Charlotte, North Carolina in this file photo from September 6, 2012. President Barack Obama on December 21, 2012 will announce his nomination of Senator John Kerry as secretary of state to succeed Hillary Clinton, senior administration officials said. REUTERS/Chris Keane