The first test in progressives’ push to reexamine U.S. military aid to Israel could be a $735 million precision-guided munitions sale. The Biden administration notified Congress it approved the sale before the Gaza conflict started, but it became a flashpoint over the past week after news reports publicly revealed the sale.

A group of progressives led by Rep. Alexandria Ocasio-Cortez (D-N.Y.) introduced a resolution in the House to block the sale, while Sen. Bernie Sanders (I-Vt.) introduced the Senate version.