From Trump critic to Trump running mate: Ohio’s JD Vance gets VP nod

Donald Trump has chosen Ohio’s Republican Senator JD Vance as his running mate. MSNBC’s Ari Melber reports and is joined by NBC’s Vaughn Hillyard and The Bulwark’s Bill Kristol to discuss. (Check out The Beat's playlist: https://msnbc.com/ari Connect with Ari Melber: https://www.instagram.com/arimelber)