IE 11 is not supported. For an optimal experience visit our site on another browser.

Joe Biden leads new poll ahead of 2nd Democratic debate

01:44

A new Quinnipiac poll shows former Vice President Joe Biden with a lead over his Democratic rivals in the 2020 race. He and the rest of the candidates are preparing to take their spots in Detroit for a second Democratic primary debate on Tuesday. NBC’s Morgan Radford reports for TODAY.