I wouldn't call it a bypass, for Biden admin had a full ability to finance Ukraine needs through PDA, USAI, EDA programmes and, moreso, lend-lease (law expired in October, but they could prolong it any time, if only Dem party were so inclined) all along 2023 farcical Zaporozhye counteroffensive campaign. And they have it now. I conclude that they simply want to serve as a log jam, controlling overall speed of flow in the river.
Definitely, it is not only House Republicans' adamant stance that matters. Dynamics of the war is precisely, granularly regulated by the US and Russia, for the carnage, in essence, already in 2022 turned into their join effort of dismantling economical power of the EU.