DAY 456: Mariupol’s last stand

<p>Hundreds of Ukrainian troops and civilians hunker down in a Mariupol steel plant as Russian forces close in. This, as Ukraine’s deputy PM reveals the evacuation corridor didn’t work as planned. Meantime, the Dept. of Justice appeals the ruling that overturned the federal travel mask mandate. Maksym Borodin, Kevin Baron, Vivian Salama, Julia Davis, Melissa Murray, Yamiche Alcindor, Bill Kristol and Casey Revkin join.</p>