Air raid sirens have been blaring across Ukraine as the battered city of Odesa braces for a fourth night of Russian retaliatory strikes. CNN is in the war zone where forces from Moscow and Kyiv are trading new attacks and threats. The Ukrainian ambassador to the US joins to discuss the latest developments in the war. Plus, House Republicans put the spotlight on a controversial Democrat who’s challenging President Biden. Robert F. Kennedy Jr. testified in a heated hearing in front of the House Judiciary Select Subcommittee on the Weaponization of the Federal Government. To learn more about how CNN protects listener privacy, visit cnn.com/privacy