Kathleen Hall Jamieson is pretty much up-the-middle, but she confines herself to discussing message from the campaigns, and she's just an occasional guest on The Newshour. She needs to have a supporting organization like Media Research Center at her elbow, working on media presentation of issues so that she can expand out from just analyzing parties' and candidates' platforms and messages for content and identifying their various appeals. The poisoning of the information well with press campaigning and advocacy journalism is what needs early and comprehensive attention. So far the best thing I've seen is Lying in Ponds: