jackk, not saying that there is a simple solution to this problem but in most cases Biden’s original declarations do not hold out – Kabul fell when it was not supposed to; limited sanctions showed Putin that he might go in, thinking that this will be it; supporting NordStream2 possibly showed same thing; declaring before the invasion that we will not fight there; now declaring that we will not enforce no-fly zone as UKR is asking. There are multiple possible justifications for some of these policies – staying in sync with Germans, but excuses for failures is not same as successes.
I think the problem is that current foreign political team is inexperienced and full of theories that they learned. And they apply these theories and are often wrong. Some report that Biden selected such a team to be able to do things he was asking for before and was always frustrated that he was laughed at by Ivy Leaguers (not just Gates, Obama and Bush also disregarded his sage advice).