Did you see the email released yesterday explicitly revealing HRC's campaign strategy? [0] They targetted framing Trump as a "pied piper" candidate going back to April 2015.
Yeah, I read that. They had him, Carson and Cruz figured for it. That's standard operating procedure. I would assume RNC would have loved to have pulled that themselves, with Bernie as a pied piper, and a relatively sane person like Romney as their nominee. They might similarly have been shocked by what might have happened.
[0] https://twitter.com/wikileaks/status/796222841612042240