Two experts weigh in on effectiveness of taxing the wealthy

Elizabeth Warren is calling for a specialized tax on the ultra-rich but some on the left aren't agreeing with her. Jason Furman, former chairman of the Council of Economic Advisors and current professor at the Harvard Kennedy School, and Mattie Duppler, senior fellow at the National Taxpayers Union, join "Squawk Box" to discuss.
Mon, Jul 8 20198:34 AM EDT