"One old white guy is probably one too many for some"

“Well, we’re running against somebody who has touted his relationship with Barack Obama for eight years,” Sanders said. “Barack Obama is enormously popular in this country in general, and in the African American community. Running against Hillary Clinton, Bill Clinton was enormously popular.” Some polls have him beating Biden among black voters, he said, so “it’s not that I’m not popular,” but Biden’s ties to Obama are “working well” for him.

Sanders told Maddow that “if Biden walks into the convention, or at the end of the process, has more votes than me, he’s the winner.” Maddow asked if it’s “100 percent impossible to imagine a unity ticket” with Biden. “You mean two old white guys on the ticket?” Sanders asked. “Well, probably not. … One old white guy is probably one too many for some. I think we need a little more diversity than that.”