That's how we're already interpreting it, that he will "fix" things, i.e. cause irreparable damage. There was no suggestion that he would stay on after his term, only that the damage would be so deep that the switch couldn't simply be flicked in the opposite direction.
He was talking to groups who don't normally bother to vote, who started paying attention because the economy was so bad. He was talking about fixing the economy so they can go back to not paying attention.
