Hillary Clinton was supposed to have the most sophisticated digital ground game ever, while all Trump had was a ramshackle data bunker in San Antonio. We all know how that turned out. Sasha Issenberg is a Bloomberg contributor and author of The Victory Lab: The Secret Science of Winning Campaigns. He says there are many explanations for what happened, including the Clinton campaign’s inadvertent encouragement of Donald Trump voters in states like Florida. In the Spiel, it’s a Lobstar week. Oh yes, it’s a Lobstar week. Learn more about your ad choices. Visit megaphone.fm/adchoices