America’s winner-take-all electoral system casts third-party candidates as spoilers—but what would it take to open the door to not just a third party, but a fourth or more?  Guest: Lee Drutman, senior fellow in the Political Reform program at New America, author of Breaking the Two-Party Doom Loop. If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices