New Herman Cain accuser emerges – Has the Cain train veered too far off course?

An Atlanta businesswoman is accusing GOP presidential hopeful Herman Cain of having had an affair with her that lasted nearly 14 years.  

"I was aware that he was married, and I was also aware that I was involved in a very inappropriate situation - relationship," Ginger White told Atlanta television station WAGA. But in an interview with Wolf Blitzer on CNN's "The Situation Room" Monday, Cain said he knew White as an acquaintance, but flatly denied that they had an affair.

Christine Romans talks with conservative commentator Tara Wall and Republican Strategist Karen Hanretty to about if these newest allegations could effectively end Cain's campaign.