Sanders pushes back against Biden's 'most progressive' claim

Sen. Bernie Sanders pushed back against former Vice President Joe Biden's claim that he has "the most progressive record" of any candidate in the Democratic presidential field, citing Biden's votes as a member of the U.S. Senate as evidence that his views were not always in line with the nation's liberals. "I think if you look at Joe’s record and you look at my record, I don’t think there’s much question about who’s more progressive," Sanders, I-Vt., told ABC News Chief White House Correspondent Jonathan Karl in an exclusive interview from Des Moines, Iowa, that aired on "This Week" Sunday.

https://abcnews.go.com