A Georgia businesswoman says she and Republican presidential hopeful Herman Cain had a 13-year extramarital affair, an allegation that Cain is denying as strongly as earlier allegations of sexual harassment.

In an interview Monday with CNN, Cain acknowledged that he knows the woman who is behind the accusation.

Moments after Cain issued a pre-emptive denial, an Atlanta television station, Fox 5, reported that a woman identified as Ginger White says that her affair with Cain wasn't complicated.

White tells Fox 5 that she was aware that Cain was married. She also says that she knew she was involved in what she calls "a very inappropriate situation, relationship."

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