All week, the NewsHour, with the help of the Pulitzer Center for Crisis Reporting, is featuring stories "Inside Putin's Russia," underscoring the tension between Moscow and Washington. Vladimir Putin is now serving an unprecedented third term as Russia's president, and is expected to seek another six-year term in next year's presidential election. While Putin has been widely popular, this spring saw the largest anti-government demonstrations in years throughout Russia. One of its leaders is the vocal and frequently jailed opposition leader, Alexi Navalny. On Saturday, NewsHour Weekend Special Correspondent Nick Schifrin and producer, Zach Fannin, introduce us to Navalny and the growing opposition movement he represents.