Tonight on The Last Word: President Biden says the U.S. is working on every aspect of the hostage crisis in the Israel-Hamas war. Also, Israel's emergency government forms a "war cabinet." And Israeli forces and tanks assemble along the border with Gaza. Rep. Daniel Goldman, fmr. Amb. Michael Oren, Noga Tarnopolsky, Rep. Sara Jacobs, Richard Engel and Ronen Bergman join Lawrence O'Donnell.