Today's Meet in the Middle show is Dan's last and is titled 'A Discussion with John Donvan: What's the Path Back to Healthy Debate?'. John is the moderator for 'Open to Debate' and he and Dan unpack the importance of healthy debate and respectful dialogue, and the challenges of polarization. John shares his insights as a moderator, author, and ABC News correspondent, as well as ideas on how to increase discourse and decrease polarization.