The twists and turns in Herman Cain’s latest misadventure are too many too follow, at this point, unless it’s your full-time job. Erick Erickson’s summary, however, more or less captures the state of affairs.
It boils down to this: either Cain has failed abysmally to fend off an utterly predictable line of attack, or he’s done something wrong that would endanger his campaign if it became known.
I think the first possibility is more likely. This wouldn’t be the first time the Cain campaign has inexplicably committed a major unforced error. Remember that it was less than two weeks ago that Cain was accidentally espousing a pro-choice position (a gross miscommunication that was never fully clarified, by the way). But the sooner Cain clears this up, the better.