Putin rival Alexey Navalny speaks out about how he was poisoned with a nerve agent on 60 Minutes

Putin rival Alexey Navalny speaks out about how he was poisoned with a nerve agent on 60 Minutes

60 Minutes correspondent Lesley Stahl joins "CBS This Morning" to preview the first U.S. TV interview with Russian opposition leader Alexey Navalny since he was poisoned with a nerve agent two months ago, and shares how he's recovering in Germany after the incident.