FILE - In this May 8, 2012, file photo, Richard Mourdock listens to a question from a voter in Avon, Ind. Senate Republicans are jumping into Indiana's Senate race with a new ad, outdoi

 

              FILE - In this May 8, 2012, file photo, Richard Mourdock listens to a question from a voter in Avon, Ind. Senate Republicans are jumping into Indiana
FILE - In this May 8, 2012, file photo, Richard Mourdock listens to a question from a voter in Avon, Ind. Senate Republicans are jumping into Indiana's Senate race with a new ad, outdoing a recent buy from national Democrats as the parties battle for control of the Senate. Spending in Indiana has quickly escalated as Democratic candidate Joe Donnelly has stayed neck and neck with Republican Mourdock since May. Mourdock's primary victory over Sen. Richard Lugar created the opening for Democrats in Indiana. (AP Photo/Darron Cummings)