Michael Kosta tackles last night's VP debate between JD Vance and Tim Walz and the cable news pundits who have been hard at work spinning who won. Plus, Troy Iwata is in the post-debate spin room with a definitive, scientific debate-scoring system. Dean of the Columbia Journalism School and staff writer at the New Yorker, Jelani Cobb, talks to Michael Kosta about the new PBS documentary he's featured in, "One Person, One Vote?" which explains the Electoral College and its history rooted in the exploitation of enslaved people for political power. Cobb also discusses the process that most people don't realize goes into trustworthy journalism and the importance of having a diverse news diet.