I mean this guy isn't gonna be the vanguard of the revolution. He's a Berniecrat who will do Berniecrat things. If he wins he can cancel out Joe Manchin's vote.

Like most elections, it's pretty low risk low reward. He's asking for a half hour of your time voting for him. He'll probably get you a couple amendments for a bill and if they get to 51 senators he'll cancel out Manchin's vote. Which isn't much, but it's worth the half hour.