It is highly unlikely Newt has a secret life somewhere.
Christians believe in forgiveness. You have to ask yourself, is Newt Gingrich likely to continue in long past behaviors? Or has he moved on to become an outstanding citizen in his private life? Is Gingrich going to be another Bill Clinton in the White House hitting on the interns?
The answers that I have concluded is no, yes, and no.
Therefore this should be a non-issue.