WH Braces For Potential Biden, Putin Showdown At G20 Summit

<p>Heavy shelling right now in eastern Ukraine as Russian forces make new gains at the close of a critical week in the war. In Mariupol, the city’s last defenders are under relentless attack in the besieged steel plant where hundreds of civilians are also trapped. We are following the urgent push to evacuate amidst strong fears of a new attempt by Russia to storm the complex. <br><br></p><p>To learn more about how CNN protects listener privacy, visit cnn.com/privacy</p>