All of the Trump supporters and most of the Republican establishment believe Donald Trump will have a solid 1237 delegates by June 7. For the last few weeks, the much anticipated “pivot”from being a douchebag to simulating a person with respect and empathy has yet to pass. Trump will not attack someone one day, see something to set him off and it’s back to lying Ted or disgusting Kasich all over again.
The Trump team has to understand that you have to be presidential 24/7. Even the rare slip-up by John McCain and Mitt Romney became fodder for days. At some point Trump will call Hillary fat and / or old, ending any aspirations for gravitas.
If you run your campaign on personal insults and lunch pail policy statements, you might as well keep going in that direction. If Trump expects to win back people who supported Cruz or Kasich, (or Walker or Rubio) he’d better be down 5% in the general election. A big lead would be the excuse for people to treat him like he treated his primary competitors.