That's for Zelenskyy and Ukraine to decide. It's not the prerogative of Trump to decide the fate of Ukraine, or decide what Ukraine is going to give up to his buddy Putin who after 50+ years of adversarial relations is suddenly our friend, and people who have drank the Trump Kool-aid have magically decided is reasonable.
Discussion
There’s not one party at play in US. Trump is likely facing internal pressures to let the war carry on - from the same people who enabled it all along.