Such determinations are rare, but not unprecedented, when administrations see an urgent need for weapons to be delivered without waiting for lawmakers' approval.
For the second time this month the Biden administration is bypassing Congress to approve an emergency weapons sale to Israel as Israel continues to prosecute its war against Hamas in Gaza under increasing international criticism.
Because it is a sale that was planned before the Gaza slaughter. Congress does not approve sales. Congress could pass a resolution to block the sale but they don't approve them.