Carol and Amon Burton, Obama campaign volunteers, place election day signs on Lamar Blvd. before polls open on Tuesday morning, Nov. 6, 2012 in Austin, Texas. (AP Photo/Tamir Kalifa)

 

              Carol and Amon Burton, Obama campaign volunteers, place election day signs on Lamar Blvd. before polls open on Tuesday morning, Nov. 6, 2012 in Austin, Texas.  (AP Photo/Tamir Kalifa)
Carol and Amon Burton, Obama campaign volunteers, place election day signs on Lamar Blvd. before polls open on Tuesday morning, Nov. 6, 2012 in Austin, Texas. (AP Photo/Tamir Kalifa)