It seems to me Vance was the one trying to litigate it in public.America has given more than every nation in Europe combined, and this guy wanted to play with the lives of his people. I cannot stress enough, if you do not agree with it continue to litigate behind the scenes, do not show up to the signing ceremony and try to litigate the agreement publicly. Leftists seem to think that Zalenskyy was somehow "perfect", didn't act like an entitled child angry at his parents... that was not how you act when you've negotiated an agreement.
I think he is trying to save lives by demanding a deal that might prevent Putin from regrouping and invading again in two years. Like last time!