In an interview between events here this week, Sanders said Biden’s record and ties to the political establishment make him ill-suited to defeat Trump in November — and urged Democrats to value voters’ appetite for sweeping change over Biden’s perceived electability.

“It’s just a lot of baggage that Joe takes into a campaign, which isn’t going to create energy and excitement,” Sanders said. “He brings into this campaign a record which is so weak that it just cannot create the kind of excitement and energy that is going to be needed to defeat Donald Trump.”…

“When you think about it, Warren and Buttigieg are kind of going after that wine cave, kind of limousine Democrat — and they’re there, kind of important to the whole party,” said Pete D’Alessandro, Sanders’s senior adviser in Iowa. “We’re going to want them when we win the nomination . . . but a lot of working-class folks like Joe Biden. Joe Biden and the Bernie Sanders campaign are talking to a lot of the same people.”