Polls that do wider matchups show that both Obama and Edwards outperform Clinton ... and that is on the back of greater name recognition for Clinton.

If Richardson became better known, I would not be surprised to see him join the group of those who outperform Clinton in head to head match-ups. The right wing noise machine have had more than a decade to indoctrinate even the lowest information recipient of their noise against Hillary, and that puts a hard ceiling on her upside potential in any general election contest.