Michigan natives Michael Kosta and Jordan Klepper debate their state's primary, "Dr." Troy Iwata rates politicians' mental fitness, and writer Sloane Crosley discusses "Grief Is for People."

Jon Stewart discusses Biden and Trump's recent visits to the Mexico border, how the GOP uses fear to advance their policy goals around immigration, and how the Democrats' struggle to deliver on their espoused values. "We're kinda in this doom loop where the border is the symbol of everything, but obviously, in a kind of commonsensical way, the only way to approach this broader problem is to deal with every aspect of the system." Jonathan Blitzer, New Yorker staff writer and author of "Everyone Who Is Gone Is Here," discusses with Jon Stewart the political dynamics at play that are preventing comprehensive immigration reform from getting passed in the U.S.