Here is rare story from the corporate media, which generally protects its own, calling out Fox for essentially acting as a gate keeper with respect to who can and cannot run for the GOP nomination. This ignores Fox's arbitrary rules limiting photos and participants in the GOP debate.
http://weblogs.baltimoresun.com/entertainment/zontv/2011/05/gop_debate_fox_to_blame_for_pa.html
If you want someone to blame for the mess in GOP politics these days, I suggest a long, hard look at Fox News.
Never before in post-World-War America has a media entity become so involved in the presidential selection process of a major party. I think that is bad news for all of us in terms of the political process imagined by the framers of the Constitution working as intended in 2012.
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And the most amazing thing, even as Washington political analysts chart the state of GOP disarray, they seem to have stopped talking about the role of Fox News. A piece in the Baltimore Sun today from the Tribune's Washington bureau does a nice job of chronicling the "legal and semantic haze" of "who's in and who's out" in the GOP race, yet there is no mention of the biggest reasons for that very legal and semantic haze: Fox News.
The cable channel's leader Roger Ailes signed several of the major GOP contenders, and now he appears to be telling them when and how they can or cannot essentially run or not run for president of the United States.