U.S. Leads Military Exercise With Allies; Russia Issues New Warning

Russia issues a chilling warning as an official says Putin will increase ground and air defenses if more countries join NATO. Plus, federal prosecutors are reportedly launching a grand jury investigation into Trump. Also, Pennsylvania GOP Senate candidate Kathy Barnette is surging in recent polls, scaring both Trump and Mitch McConnell. To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices