Reply #3: let me quote TPM

[wyldwolf]

I think this Mason-Dixon data is getting a little too much play. A few days before these results were published, a national Newsweek poll showed Clinton (and other top-tier Dems) with healthy leads over all of the leading Republican presidential hopefuls. In each instance, her support topped 50%. (In a hypothetical match-up against Romney, she's at 55%.) There are other recent polls showing similar results.

Obviously, something is askew. Either a majority of Americans have ruled out backing Clinton under any circumstances, or a majority of Americans are prepared to support her against a GOP rival. It can't be both. And given that there are more polls for the latter than the prior, I'm not necessarily prepared to write her off as a viable general-election candidate quite yet.