Well, he's already insulted or offended more than half of America as long as one listens to the SJW and Media, who actively will do their absolute best to convince people that Trump is the devil incarnate and OMG!, Vote Billary! #imwithherslurpslurp
The total hysteria of the Left notwithstanding, I don't think the Reps are scared of losing the POTUS election, they knew that was going to happen with Billary ran and Trump decimated their shit other candidates. What the Establishment (on the Left and Right) is petrified of losing is losing control of POTUS. They need someone who they can pull the strings on. We know Billy Boy had no problems selling out everyday Americans, obviously Bush II didn't, Bummer couldn't have closed door meetings fast enough, but now, damn!, there are threats from both the Left and...Right? - can one call Trump a member of the Right even...he seems to be more a member of Trump.
Just think how scary that is for the Establishment: You're going into an election where instead of having complete guaranteed control of both POTUS candidates as you've had for decades, and being able to sit back and know the entire time you just need to wait for the election to be over to continue BAU, you now have anywhere from a
0% (Bernie and Trump) to 50% chance (Billary and Trump) of not having complete certain control over POTUS. How unacceptable of a situation is that? So unacceptable you've finally got a candidate on the Left that really represents what the Left has been yearning for, and the Left gets Billary nominated by hook or by crook. And on the Right, basically the same thing - except the candidates were so bad Trump blew them all way. Look at how loyal Reps are as a party. Now, how can a party that is
that loyal treat their obvious nominee
that badly in lack of support, low public enthusiasm, etc? Because they're doing it on purpose - they don't want Trump as POTUS.
It will be exceedingly entertaining to watch some of our resident Lefties rationalize Billary over the next few months. The obvious "Sha Sha She's not that racist misogynist xenophobe Trump! <sniffle sniffle> and We must stop him! #istandwithsomeonelettingintensofmillionsoflowwagecompetitiondirectlyFingUSCitizensandespeciallyBlacksandwhohashersidesayifyourawomanyouneedtobackthewomanbutneitherofthoseisracistormisogynist"
is entertaining, but unfortunately the imagination doesn't get much better than that.

I pray the Intellectuals can step up their game! :\