this four-way race, but he's taking fire from all sides. look at this ad being run by a louisiana group called gumbo pac. it hits his record, but also a prostitution scandal. >> vitter, 16 years in washington, voting for huge spending, increased debt, supporting common core, and a prostitution scandal that showed a complete lack of personal integrity. >> as for the why, it shows there's strong opposition to vitter, even on the republican side. if vitter and west point educated john bell edwards emerge from this jungle primary, it's going to be interesting to see what vitter's republican opponents do, because they have been hitting him hard over the prostitution front. will they defect for the conservative democrat edwards, hold their nose and vote for vitter, stay home? vitter's favorablity numbers are in a down swing and he's not helped his cause by missing six