Well, the Socialists are trashing him already for being "a farmer" I didn't understand the significance of which side of "the river" he comes from, but took it as a "wrong side of the tracks" analogy. No one brought up the fact that in bad economic times, when the "family farm" is a dying breed in America, he is in a secure enough position to consider running. This shows that he must be a fairly shrewd "farmer", AND business man.
When the campaign gets going media access will be his biggest problem I think, the socialists will continue to trash him and the GOB's will try to ignore him. If a comment is made by his opponents about which side of the river he lives on I think he should answer to the effect that with Black men in the white house and running the Republican Party that type of "wrong side of the tracks" mentality has no place in American politics.
While I'm not familiar with SD's specific situation, a conservative successful non GOB has to be better than socialists or party hacks.
Good luck to him.