Bernie Sanders’s road to the presidency may have effectively ended, but that doesn’t mean he can’t pressure likely Democratic nominee Joe Biden to take up some of his policies. The question remains whether the former vice president needs to listen to the socialist senator from Vermont.

Sanders’s message is clear: I might not be able to win the nomination, but I still lead a sizable chunk of the Democratic Party. Most of my supporters are young, and you’ll need them to vote in 2020. The age gap between their bases is among the largest in modern political history. If Biden shuns Sanders voters, he risks losing the general election to an easily beatable opponent.