The Tweet last night from Trump about DeSantis was a huge L for Trump, IMO. Desperate, hysterical.
Trump is not wrong whatsoever that he initially "made" DeSantis. It's 100% accurate. DeSantis does not win the Republican nomination and probably the governorship itself without Trump's endorsement. Hell, he barely beat Gillum with his endorsement.
Unfortunately for him, that doesn't change the fact that lots of people like him, and I bet more Trumpers will start to like him as they discover DeSantis is Trump in a lot of ways without the baggage. Since DeSantis has been governor, he's proven to be a shrewd political operator, independent of Trump, and has built a following of his own apart from his connection to Trump. Donald hates that, because it has to be all about him.