Personally, I see both in Scripture: commandments (free will) and prophecy (predestination).
Being from the Arminian school of Calvinism, I would have to overcome lots of angst to re-open any calvin wars here on FR. Arminius, as many are aware, was a Calvinist with a very high regard for Grace and for God's Justice. Faith was the means by which God, who gives grace to all, avoids accusations of injustice and of evil.
For faith in Christ Jesus itself is a gift from God, the rejection of which leads to eternal separation from God. But, some argue against this graciousness of God because He offers it to humans whose fallen, depraved state can only see it if their spirits become quickened by God. However, Jesus is the light who gives light to every man who enters the world. In too many cases, He came to own, and His own received Him not.
These do not in any way take away from God's omnipotence, omniscience, or omnipresence.
Betty's concerns include:
If we have to consult the written word of the Holy Bible in order to understand how we can vote in this election without offending God
I don't believe she said well in that sentence what she meant. I can see no harm in consulting the Bible in any decision we must make. Nor is there really any harm in consulting Betty Crocker if I'm about to make a batch of pancakes, even though I'm fairly certain I've got the recipe down. Doesn't hurt anything at all. Betty Crocker will not be offended.
Betty's concern might also be that God can be accused of over-determining if He selects leaders of nations. I do not see any basis for such a concern since:
1. The Bible clearly shows God selecting leaders of nations, and
2. The Bible sees no violation of the 3 omni's or of grace or justice in those occasions when God selected leaders of nations.
So, this is somewhat afield of "Should we support Evil People who also Support Israel because God Blesses those who Bless Israel."
There is actually very good reason to consult the bible on that question. It is a difficult question. It is no shame to consult Betty Crocker for a recipe on, say, Classic Greek Moussaka.