** FILE ** Vice President Joe Biden gives a thumbs-up before President Barack Obama's State of the Union address in front of a joint session of Congress Tuesday, Jan. 24, 2012, at the Capitol in Washington. (AP Photo/Saul Loeb, Pool)

Photo by: SAUL LOEB

** FILE ** Vice President Joe Biden gives a thumbs-up before President Barack Obama's State of the Union address in front of a joint session of Congress Tuesday, Jan. 24, 2012, at the Capitol in Washington. (AP Photo/Saul Loeb, Pool)