Al Gore on how Walter Mondale made the vice president's role a 'substantive partnership'

Summary: Former Vice President Walter Mondale passed away Monday night at the age of 93. He was a lifelong public servant who transformed the role of vice president, and championed civil rights under President Jimmy Carter. For more on the way he changed the role of vice president and his political legacy, we are joined by another former Vice President, Al Gore. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders