In announcing a new weapons package for Ukraine and a ceasefire deadline for Putin, President Trump reversed his previous stance towards Russia’s invasion. But will the weapons have the intended effect for Ukraine, or does the deadline give Russia weeks more to continue its onslaught? William Brangham has views from Kimberly Kagan and Jennifer Kavanagh. PBS News is supported by - https://www.pbs.org/newshour/about/funders