It's why you have children, isn't it? So they can eventually take their place as adults?

That's what we Mormons believe about the nature of God. That's the God we find in the Bible. We can't find the platonic one there. They found him somewhere else.

But when it comes to choosing a president, does a person's opinion about the nature of God make any difference at all?

What makes a difference is the candidate's character: Does he actually live by the rules he professes to believe in? Does he keep his word?

Character is the only issue that matters, in my opinion. A person who professes correct opinions but has no honor won't be much good as president, while a person of honor can believe what he wants about God and still be a president we can trust.