“No other candidate has as durable a base as we do,” said Nina Turner, the former Ohio state senator who has been one of Sanders’s most high-profile surrogates since 2015.

“So now he has an energized base and we’re starting to see his crossover appeal. We can enumerate that too, with 4 million donations and hundreds of thousands of volunteers. We have the receipts and we have the moral clarity from a senator who has stood on the right side of justice for over 40 years, whether it’s been popular or not.”