There’s Foster Campbell, big Democrat winner in 2014 for reelection to the Public Service Commission. I think he is running for governor. Vitter could be defeated, as he is a supporter of Common Core.
Campbell ran for governor in 2007, and got beaten like a rented mule. He won’t try it again.
http://en.wikipedia.org/wiki/Foster_Campbell
Foster Lonnie Campbell, Jr. (born January 6, 1947), is a Democratic member of the Louisiana Public Service Commission, a former 26-year member of the Louisiana State Senate, and an unsuccessful candidate for governor in the nonpartisan blanket primary held on October 20, 2007.
In the gubernatorial race, Campbell polled 161,425 votes (12 percent) and won two parishes: Red River and Bienville, both near Shreveport. He lost his home parish of Bossier Parish (20 percent) to the successful Republican candidate, Bobby Jindal (60 percent).