Putin will escalate things
Look, it is Putin who should worry that the US will escalate things, not the other way around.
This money will mostly end up in the American pockets anyway as it is an aid for weaponry, so don't seat that much.
The thing is they are sealing and are corrupted but there is nothing that can be done in general, need to scrutinize more, making sure that aid and support go to the troops on the front lines, at least most of it.
Ukirniae should get planes, more long-distance rockets, and munitions, also to entice them to mobilizations they should get more weapons and more aid for the troops, which could be a trade like for the like.
The victory condition at this stage is Ukrianie taking Krym, they can do it. Just need more than a dementia president and tribal ideological warfare inside the US.