What You Need to Know As Primary Season Enters the Final Stretch Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email LAS VEGAS, NV - OCTOBER 13 2015: CNN Democratic presidential debate features candidates Sen. Bernie Sanders, Hillary Clinton at Wynn Las Vegas. ( Joseph Sohm / Shutterstock ) Produced by Oliver Lazarus Produced by PRI and WNYC