We can do MUCH more than that. Currently Biden is giving $8 Billion a year to Israel and is Congress for an additional $14 Billion, and is vetoing UN Security Council resolutions that criticize Israel and quietly blocking their investigations into war crimes. Biden could add conditions to the aid (he already blocked shipments of rifles because they were going to arm settlers who were committing attacks on unarmed Palestinians), he could block the additional aid or heavy weapons shipments or he could abstain and let the UN Security Council actually order Israel to stop violating the Geneva Conventions.