FILE - In this Aug. 29, 2012 file photo, Ohio Senator Rob Portman waves to the delegates during the Republican National Convention in Tampa, Fla. Portman said Thursday, March 14, 2013 t

 

              FILE - In this Aug. 29, 2012 file photo, Ohio Senator Rob Portman waves to the delegates during the Republican National Convention in Tampa, Fla. Portman said Thursday, March 14, 2013 t
FILE - In this Aug. 29, 2012 file photo, Ohio Senator Rob Portman waves to the delegates during the Republican National Convention in Tampa, Fla. Portman said Thursday, March 14, 2013 that he now supports gay marriage and says his reversal on the issue began when he learned one of his sons is gay. (AP Photo/J. Scott Applewhite, File)