Digital Ads and the Wild West of Political Campaigning 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 In this May 20, 2019 file photo, President Donald Trump gestures to the crowd as he finishes speaking at a campaign rally in Montoursville, Pa. ( AP Photo/Evan Vucci ) Produced by PRI and WNYC