Harris clowns Trump’s ‘unserious’ tariff tax fixation

Kamala Harris delivered her latest economic address in Pennsylvania and sat down for an exclusive interview with MSNBC's Stephanie Ruhle. MSNBC’s Ari Melber reports. (Check out The Beat's playlist: https://msnbc.com/ari Connect with Ari Melber: https://www.instagram.com/arimelber)