re: Why do DeSantis supporters think Ron has a better chance to win the Presidency than Trump?

DeSantis has a better record when it comes to governing, he's much smarter, more disciplined. He should beat Trump and if the election was a mandate regarding results, he would win. But an election is much more than that.

I don't think anyone anticipated his awful campaign.

He seemed pretty genuine in his Florida gubernatorial races and duties. People like that, and it was his own brand of charisma. For the presidential campaign he has not been very charismatic. Lifter boots don't help, and he seems to have a bad campaign staff. I suspect the staff was built for him by outsiders and they stacked it with idiots that arrived with talking points for the establishment rather than any sort of plan to go after Trump.

Lastly, in the past he appeared to be the exception to the rule regarding behavior and leanings of people that came from the Ivy League. This campaign makes him seem like just another member from that pack of Ivy's that are out to fleece Americans and secure more power for the establishment and DC. His uber pro-Israel stance at the expense of free speech is a total 180 from where he once stood. You can have both, unless you're bending the knee to a powerful pro-Israel lobby that wants more than an even playing field. This has exposed DeSantis.

In summary, for many people I believe he's gone from "Us" to "Them".