If you have a smothering parent, the effect it can apparently have on a child is to give them, in equal doses, a sense of too much self-esteem, because they are mummy's little princess or prince, and low self-esteem. It affects future relationships.
For the record I believe elected officials should talk about faith. Our founders believed the moral principles of faith were indispensable to our nation's survival. The Declaration of Independence mentions God four times.