I agree with Ross and with Jason Zengerle, that Ezra Klein’s account of why John Edwards can’t get ahead (lack of media coverage) isn’t very plausible. If anything, Edwards has gotten more coverage vis-a-vis Bill Richardson than he seems to deserve.
That said, I don’t think Ross is quite right either. There’s actually nothing to explain here. Ex ante a former one term Senator and former losing Vice Presidential candidate just doesn’t have a very good chance of winning the presidential nomination. Given the objective realities of the situation, his campaign’s doing pretty well. He’s leading in Iowa. Lefty intellectuals love him. Progressive bloggers love him. Labor leaders love him. If he continues to establish a lot of good will among opinion leaders on the left, plus continues to be a white man in a world where a lot of people think a white man is more electable than a woman or a black guy, and pulls off a win in Iowa, then he just might be able to “bounce” his way to victory. How much better could he realistically be doing?