Rubio Book Tour

May 24, 2012 - 3:48 PM
In this photo taken May 24, 2012, Sen. Marco Rubio, R-Fla. has a conversation just off the Senate floor on Capitol Hill in Washington. Rubio is planning a swing-state summer bus tour that will also roll through South Carolina, the early presidential primary battleground. (AP Photo/J. Scott Applewhite)