I predict the Presidency will be won by the democrat, probably Hillary Clinton.
However if Trump does win the nomination and Presidency, I predict within the first year, people will be screaming that he promised so much (vaguely) and delivers so little.
He will appoint a Chief of Staff with extensive executive branch experience, and this person will continually inform Mr. Trump about the legal boundaries of what he can actually do.
Likewise Attorney General, etc.