I'm going to go against everyone else and say that neither Biden nor Trump can end the war. Trump can cut the US support, but that's all he can do, and even if that led to Russia regaining the momentum, it won't win, in the same way that Bush's MISSION ACCOMPLISHED banner wasn't the end of the War in Iraq.

At most, what can happen is that the Ukranian side of the war turns into an insurgency, and we love saving lives through counterinsurgency don't we folks?

But can we afford a tiddy gap