inside the kremlin, president putin is really a victim of his own policies. his invasion of ukraine has turned out to be an all round disaster. russia isn't winning, and hard liners in moscow are calling for him to escalate the fight against the west. so is there any way to make him back down and pull out of ukraine? well, i think the answer to that is that we cannot persuade him to back down. i don't think that's the way ahead. i don't think there's a strategy there that can be successful. i know biden said that we're looking for the ramp off and so on. well, and i think sanna marin nailed it when she said the ramp up is for ukraine, for russia to leave ukraine. we will not be able to do that for him. and that the reason because of that is that this is an existential war for putin. it's not a war of choice as we see it. it's an existential war for him. it's a war between russia and the west. so what about that nuclear option that putin