INDIANAPOLIS (AP): Indiana Republicans hoping to maintain their ironclad grip on the  Statehouse will face questions from voters about jobs and the economy as  they move toward the general election.  The bread-and-butter issues  topped concerns among voters in Tuesday's primary in a sharp shift from  the social issues that have had dominated recent elections.  Republicans  in November will try to maintain supermajorities in the state House and  Senate.  All nine of the state's congressional incumbents easily  advanced to November's general election.