Still probably a worthwhile solution if it ends the war satisfactorily, however: Don’t get me wrong.
The hard part is to convince Russia that the NEXT US president will not tear up any agreement between the US and Russia. I think outlawing the Democrat Party would go a long way to relieving Russia of that concern (after all, Europe has no problem outlawing troublemakers), but it would still be a big step here.
So the next option would be pulling back and/or removing US forces from Europe, as that would give Russia some time to prepare, should a psycho, like Nuland get into a position to start moving troops back into Europe to start another war against Russia.
As far as Europe itself goes, Russia, like anyone else, can read the tea leaves there, and while Europeans can threaten all they want today, in a decade those countries will be mostly Islamic and thus won’t have the psychological baggage regarding Russia that Europeans have.