And where does the bible require us to ask God for forgiveness? We are told to confess sin, not ask for forgiveness. If we believe, our sins were already forgiven on the Cross.
When has he ever said he has never confessed his sin? I can't help but think you are conflating confession of sin (which is biblical) with asking God for forgiveness (which is not biblical).
Again, how do you know or when did he say he has never confessed his sin?
He was raised Presbyterian, and still claims Presbyterian as his church affiliation. The Presbyterian liturgy (Book of Common Worship, page 53) says:
Merciful God,
we confess that we have sinned against you
in thought, word, and deed,
by what we have done,
and by what we have left undone.
We have not loved you
with our whole heart and mind and strength.
We have not loved our neighbors as ourselves.
In your mercy forgive what we have been,
help us amend what we are,
and direct what we shall be,
so that we may delight in your will
and walk in your ways,
to the glory of your holy name.
The problem I have with such a liturgy is that it can so easily become nothing more than a religious ritual, with no real meaning to the heart and soul of the person reciting it.
But if just one he recited that liturgy in a church service, and really meant it, does that not meet your criteria for confession of sin?
Let's talk turkey for a moment. I am not a great Trump supporter. In fact he is the worst possible candidate, from those who were in the running a year ago, for the GOP to put forward as this election's Presidential candidate. In my opinion he is an arrogant, self-serving pig.
But what grates on me, as a Christian, and as a Pastor (now retired) is the self-righteous condemnation of the man based on sound bites and media coverage.
To me it smacks of Luke 18:11 The Pharisee stood and prayed to himself like this: ‘God, I thank you, that I am not like other men, extortionists, unrighteous, adulterers, or even like this tax collector' (or politician).