This bit of analysis of the WSJ/NBC poll by First Read is very interesting:
*** Where Cain over-performs: According to the NBC/WSJ poll, this is pretty fascinating: Cain over-performs vs. Romney in the GOP horse race among high-interest Republican voters, men, those 55-plus, Republicans who have college educations, Tea Party supporters, and those who identify themselves as “very conservative.” Where Romney over-performs: less-interested voters, women, non-Tea Party Republicans, and moderate/liberal Republicans. In fact, re-read the responses from the RE-interviews: These are folks who ARE watching the debates and who are paying attention to the day-to-day campaign. These numbers are yellow flags that border on red for Romney. Why? He’s being propped up by folks who simply are familiar with him, not those who are actively following the campaign. Ouch.