An effort to counterweight GOP-friendly maps in Ohio and Florida in New York state has backfired on the Democrats. How did Democratic state politicians bungle their redistricting process? Will the error cost the party nationally?   Guest: Dave Wasserman, U.S. House editor of the nonpartisan @CookPolitical Report. 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