If Trump was smart, he'd stand down and throw the full weight of his support behind DeSantis while apologizing and begging forgiveness for every nasty word he said about him.
Trump has no path to the White House. He will certainly get convicted for at least some, if not all, of the charges against him.
He needs to start thinking about earning pardons. Plus, with a Republican president in the White House, he might actually get invited back for his official portrait unveiling.