FILE - In this May 8, 2012, file photo, Indiana Republican Senate candidate Richard Mourdock listens to a question from a voter in Avon, Ind. Campaign cash from outside political groups

 

              FILE - In this May 8, 2012, file photo, Indiana Republican Senate candidate Richard Mourdock listens to a question from a voter in Avon, Ind. Campaign cash from outside political groups
FILE - In this May 8, 2012, file photo, Indiana Republican Senate candidate Richard Mourdock listens to a question from a voter in Avon, Ind. Campaign cash from outside political groups is flooding into conservative states with close Senate races like Indiana and Montana, where residents are less accustomed to a relentless barrage of attack ads on TV. (AP Photo/Darron Cummings, File)