Establishment Dems and Latte Liberals are still very much focused on the "bad man can't be elected because he's bad" mindset they were when Hillary tried to trot it out in 2016. They still haven't understood that majority of people who aren't a registered Dem doesn't really give a shit about what Trump has said or accused of if it's not legitimately criminal.
They keep trying to play politics as some Ivy League debate club when it's really just the WWE to most people, and Trump is the best heel they've seen in years. They don't understand that a good heel will always have more audience support then a boring babyface.
If I was a GOP strategist, this would be the combo I'd be pushing. DeSantis has the media savvy and culture war positions of Trump, without any of the personal baggage Trump brings. He also has the military (Navy JAG) and religious (practicing Roman Catholic) Trump lacked. Hell, he can even throw out the time he was
attacked by a crazy liberal and how he still supports gun rights. Dude is a younger, more politically viable Trump, and I think even never-Trumpers would support him.
Haley hits that sweet spot with right leaning/centrist voters that DeSantis might not. A minority woman, born to immigrant parents, who was a governor and U.N. ambassador? Hard to see the Dems having an easy way to attack her.
She also hits that moderate position of "I don't support Trump's actions on Jan 6th/election was stolen, but the committee is politically motivated".
I don't see a DNC team-up that beats them unless a necromancer resurrects FDR and Kennedy.