Well, turns out that wasn't exactly...or remotely true. From Politico:
"Tonight, after persistent questioning by our staff, the Gingrich campaign concedes now Speaker Gingrich was wrong — both in his debate answer, and in our interview yesterday," King said on tonight's edition of John King USA. "Gingrich spokesman R.C. Hammond says the only people the Gingrich campaign offered to ABC were his two daughters from his first marriage."
Newt Gingrich, serial adulterer...lies? I'm completely shocked!
Here's the full Politico piece