1. We do not live in Old Testament times, nor in a theocracy connected to God with a covenant. I believe God's will is represented by the transformation of individual lives by grace through faith in Christ. I believe God permits humanity to exercise the free will he gave that is inherently a part of creation. While we take them seriously, elections in America are but a small part of human history. Elections are the result of the exercise of human free will, not manipulated by God, so the election of Hillary would have been no more, or less, the will of God than the election of the buffoon.
2. See #1. No.
4. I hear a lot of talk about "America getting right with God." But the idea of some kind of collective, national repentance doesn't fit with the gospel, which is a message of individual repentance. It is God's will that "all come to repentance, and that none should perish." He's done that through Jesus, not through negotiating covenants with nations. A correct statement would be a desire to see "more Americans get right with God."
5. "Us" would be humanity, collectively, or individually.
Long before this election, Trump had proven himself to be far more corrupt, dishonest, immoral, and a pathological liar than Hillary Clinton. I think we're about to see much worse than what he's exhibited so far. I just hope he doesn't do permanent damage to the country.