Zelenskyy: New phase of Russian offensive has begun

Tonight on the Last Word: At least seven people are killed in a Russian missile attack on Lviv. Also, Harvard Law Professor Laurence Tribe says President Biden can liquidate Russia’s foreign exchange reserved that’s held in the U.S. and is worth tens of billions. Plus, a Trump-picked judge nixes the CDC plane and transit mask mandate. And a Tennessee nurse becomes the focus of an anti-vaccine conspiracy. Ali Arouzi, Ben Rhodes, Claire McCaskill, Eugene Robinson and Brandy Zadrozny also join Lawrence O’Donnell.