Indiana Treasurer Richard Mourdock speaks to supporters in Indianapolis on Tuesday, May 8, 2012, after he defeated incumbent Sen. Richard G. Lugar, Indiana Republican, in the primary. (AP Photo/AJ Mast)

Photo by: AJ Mast

Indiana Treasurer Richard Mourdock speaks to supporters in Indianapolis on Tuesday, May 8, 2012, after he defeated incumbent Sen. Richard G. Lugar, Indiana Republican, in the primary. (AP Photo/AJ Mast)