Very apt comparison.
It must be abundantly clear to Clinton and the Progressives in both parties, is that they face a new kind of opponent.
This is a GOP nominee they have yet to see.
He intends to fight this out and is playing for keeps.
Trump will not stop until he has annihilated Clinton and her empire or loose his own in the struggle.
Like I said, This is a Man that is going to Fight, This is a Man who will not admit defeat.