FILE - This Nov. 5, 2012 file photo shows Democrat Claire McCaskill in Kansas City, Mo. McCaskill on Tuesday, Nov. 6, 2012 won the Missouri Senate race against Republican challenger Tod

 

              FILE - This Nov. 5, 2012 file photo shows Democrat Claire McCaskill in Kansas City, Mo. McCaskill on Tuesday, Nov. 6, 2012 won the Missouri Senate race against Republican challenger Tod
FILE - This Nov. 5, 2012 file photo shows Democrat Claire McCaskill in Kansas City, Mo. McCaskill on Tuesday, Nov. 6, 2012 won the Missouri Senate race against Republican challenger Todd Akin. (AP Photo/Charlie Riedel, File)