WBEZ’s Al Keefe kicks off a three-part series that pulls back the curtain on the darker aspects of election year politics- negative campaign ads, spin politics and voter cynicism. Tuesday we dive into the process of creating those ads-the research, the approach, even the voiceover. And we talk with Prof. Matt Streb of Northern Illinois University about what happens once those ads get to the voter. How effective are they for winning races? Photo Courtesy of Facebook