I hope it's a sign he'll be suspending his campaign. Given the situation, carrying on with the campaign would be absolutely counterproductive.
This means of course he’ll carry on through June, doing as much as he can to damage the party and front runner before the autumn. His ego cannot accept defeat.
I think you are doing him a disservice. At least wait to see what he actually does.
I agree. Sanders has said repeatedly that defeating Trump is critical, and has said that he would support the Democratic nominee, regardless of who it is. And he has described Biden as a "friend" numerous times, making it clear that he was not interested in launching personal attacks against him. Given all of this, I think Sanders could very well own up to reality and bow out of the primary.
Didn’t he say that in 2016, before continuing to challenge Hillary until the convention and attacking her entire campaign?