Former New York City Mayor Bill de Blasio joins NewsNation to discuss Vermont Sen. Bernie Sanders’ "Fighting Oligarchy" Tour, which is drawing crowds reminiscent of his 2016 presidential campaign. Sanders was joined in Arizona, Nevada and Colorado by Rep. Alexandria Ocasio-Cortez as they led town halls and rallies alongside other progressive lawmakers. Their goal: To tap into voter frustration and push back against President Trump. #AOC #BernieSanders #BilldeBlasio "NewsNation Prime" is America’s source for unbiased news offering a full range of perspectives from across the U.S. Weekends starting at 7p/6C. #Prime NewsNation is your source for fact-based, unbiased news for all Americans. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij