Heh. Check this out, especially the link the bio at the end.
Will it hurt him? Of course not: They know who's on their side, much like a politician telling them (as in the classic story about the old Rebbe) that he loves Israel. (The title of this post is a joke, but there may be a point for him there too.)
Of course, that's part of the problem: That a politician can talk so openly about pork, and that people are so dependent (or greedy) that they eat that stuff up. I thought people (although probably not these people) were outraged- outraged!- about earmarks. I guess it's only other people's earmarks that's the issue.