Several months ago, most Republicans and Democrats expected Indiana Sen. Richard Lugar to breeze to the GOP nomination and easily secure a seventh term in November. State Treasurer Richard Mourdock launched his bid as a conservative challenger and has vaulted to a tie or even a lead against Lugar with just five days remaining until Indiana’s primary on May 8. Mourdock explains why he thinks his candidacy is resonating with Republican voters and what issue are problematic for Lugar. Mourdock also explains how endorsements from the likes of the National Rifle Association, the American Conservative Union, Sarah Palin and Michele Bachmann have been critical to his momentum. And Mourdock responds to allegations from Lugar that Mourdock embraces earmarks, “gambled” on junk bonds as state treasurer and is not the conservative he claims to be.