Wow so let me get this straight.
You know Newt cheated on his wife, he has admitted to it.
But what you are concerned with...
Did Newt ask for permission to cheat or not?
And proving somehow asking for permission to cheat and his wife saying no you can’t...is going to sway how you think about Newt?
We know Newt cheated on his wife. Got that. Old news. He says he's sought forgiveness for it, and I don't see any reason to doubt it.
What we don't know, however, is that Newt went far beyond "mere" adultery to actually asking his wife if he could make their marriage...more inclusive. That is the accusation, and it's one that his ex-wife hasn't proven.
Again, in America - which is apparently where you don't come from - you actually need evidence before someone is presumed or proven guilty.