Bradley Tusk started his career in government before making big bucks in tech and venture capital. He’s now pouring millions of dollars into building and testing technology that would allow people to cast votes from a smartphone. On POLITICO Tech, Tusk joins host Steven Overly to discuss his new book, “Vote With Your Phone,” and lay out his case for why mobile voting can save democracy. Learn more about your ad choices. Visit megaphone.fm/adchoices