Legally, the U.S. can’t cut Israel off completely. Since 2008, the U.S. has had to weigh all arms sales to Israel and other countries in the region against the requirement that Israel maintains a “qualitative military edge” against all enemies, both state and non-state actors.
https://www.politico.com/news/2024/05/15/biden-israel-weapons-policy-00158210
https://thehill.com/homenews/house/4669080-house-passes-bill-undo-bidens-weapons-freeze-to-israel/
Ah, House Republicans passed a bill to “undo Biden’s weapons freeze to Israel,” but I don’t think it did anything in the Senate.