Won’t happen Russia will not give up what they have already taken.
If Russia “Pulled out” of Ukraine, and the Banderites took over all—there would be a terrible bloodbath of men, women and children who supported Russia or Donbass Independence. That would be on Trump’s hands. He would be seen as a monster. Crackdown would keep Zelensky in power and the money grab would be changed to “Rebuilding” Ukraine and it would be a bit like what the Clinton’s did to Haiti.