Biden joins UAW picket line; 'Sparks' book tells of China's underground artists

In a presidential first, President Biden visits Michigan to join the picketing United Auto Workers on strike. Tamara Keith, senior White House correspondent with NPR, and Princeton University historian Julian Zelizer join us to talk about it. And, attorney Ryan K. Thompson joins us to talk about the lawsuit against Baton Rouge police for alleged abuse at a warehouse known as the "brave cave." Then, a new book called "Sparks: China's Underground Historians and their Battle for the Future" tells the story of underground artists working to document the country's history. The book's author Ian Johnson joins us.