In this frame grab from video, Florida Sen. Marco Rubio takes a sip of water during his Republican response to President Barack Obama's State of the Union address, Tuesday, Feb. 12, 201

 

              In this frame grab from video, Florida Sen. Marco Rubio takes a sip of water during his Republican response to President Barack Obama
In this frame grab from video, Florida Sen. Marco Rubio takes a sip of water during his Republican response to President Barack Obama's State of the Union address, Tuesday, Feb. 12, 2013, in Washington. (AP Photo/Pool)