"The fact that she's involved removes all credibility," Georgia Christian Coalition President Jerry Luquire said. "If he says he didn't do anything, then I believe him."
Embattled Cain vows to 'set the record straight' →
Jerry Luquire, the group's president, said Gingrich has too much "anti-family baggage" associated with his three marriages and past infidelities.
Gingrich, Santorum battle for Super Tuesday votes in Bible Belt →